7855383492 has 72 divisors (see below), whose sum is σ = 21707562240. Its totient is φ = 2375392320.

The previous prime is 7855383467. The next prime is 7855383509. The reversal of 7855383492 is 2943835587.

7855383492 is a `hidden beast` number, since 7 + 8 + 553 + 83 + 4 + 9 + 2 = 666.

It is a super-2 number, since 2×7855383492² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 168978 + ... + 210390.

It is an arithmetic number, because the mean of its divisors is an integer number (301493920).

Almost surely, 2^7855383492 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 7855383492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10853781120).

7855383492 is an abundant number, since it is smaller than the sum of its proper divisors (13852178748).

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

7855383492 is a wasteful number, since it uses less digits than its factorization.

7855383492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41913 (or 41908 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 7855383492 is about 88630.6013293377. The cubic root of 7855383492 is about 1987.8752683112.

The spelling of 7855383492 in words is "seven billion, eight hundred fifty-five million, three hundred eighty-three thousand, four hundred ninety-two".