7837881140 has 96 divisors (see below), whose sum is σ = 17599921920. Its totient is φ = 2923554816.

The previous prime is 7837881133. The next prime is 7837881151. The reversal of 7837881140 is 411887387.

It is a super-2 number, since 2×7837881140² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7170434 + ... + 7171526.

It is an arithmetic number, because the mean of its divisors is an integer number (183332520).

Almost surely, 2^7837881140 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 7837881140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8799960960).

7837881140 is an abundant number, since it is smaller than the sum of its proper divisors (9762040780).

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

7837881140 is a wasteful number, since it uses less digits than its factorization.

7837881140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1399 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 47.

The square root of 7837881140 is about 88531.8086339594. The cubic root of 7837881140 is about 1986.3977947292.

The spelling of 7837881140 in words is "seven billion, eight hundred thirty-seven million, eight hundred eighty-one thousand, one hundred forty".