7855696538 has 16 divisors (see below), whose sum is σ = 11871960000. Its totient is φ = 3898474272.

The previous prime is 7855696469. The next prime is 7855696553. The reversal of 7855696538 is 8356965587.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 7 ways as a sum of consecutive naturals, for example, 138653 + ... + 186911.

It is an arithmetic number, because the mean of its divisors is an integer number (741997500).

Almost surely, 2^7855696538 is an apocalyptic number.

7855696538 is a deficient number, since it is larger than the sum of its proper divisors (4016263462).

7855696538 is a wasteful number, since it uses less digits than its factorization.

7855696538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48869.

The product of its digits is 54432000, while the sum is 62.

The square root of 7855696538 is about 88632.3673270662. The cubic root of 7855696538 is about 1987.9016743268.

The spelling of 7855696538 in words is "seven billion, eight hundred fifty-five million, six hundred ninety-six thousand, five hundred thirty-eight".