7840683840 has 168 divisors, whose sum is σ = 27363420000. Its totient is φ = 1900743680.

The previous prime is 7840683839. The next prime is 7840683841. The reversal of 7840683840 is 483860487.

It is an interprime number because it is at equal distance from previous prime (7840683839) and next prime (7840683841).

It is a super-2 number, since 2×7840683840² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 7840683840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7840683841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82411 + ... + 149909.

It is an arithmetic number, because the mean of its divisors is an integer number (162877500).

Almost surely, 2^7840683840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7840683840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13681710000).

7840683840 is an abundant number, since it is smaller than the sum of its proper divisors (19522736160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7840683840 is a wasteful number, since it uses less digits than its factorization.

7840683840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67541 (or 67520 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 7840683840 is about 88547.6359932889. The cubic root of 7840683840 is about 1986.6345344612.

The spelling of 7840683840 in words is "seven billion, eight hundred forty million, six hundred eighty-three thousand, eight hundred forty".