78902479527 has 32 divisors (see below), whose sum is σ = 106537622016. Its totient is φ = 51939792000.

The previous prime is 78902479511. The next prime is 78902479529. The reversal of 78902479527 is 72597420987.

It is not a de Polignac number, because 78902479527 - 2⁴ = 78902479511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78902479529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97289952 + ... + 97290762.

It is an arithmetic number, because the mean of its divisors is an integer number (3329300688).

Almost surely, 2^78902479527 is an apocalyptic number.

78902479527 is a deficient number, since it is larger than the sum of its proper divisors (27635142489).

78902479527 is a wasteful number, since it uses less digits than its factorization.

78902479527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 78902479527 in words is "seventy-eight billion, nine hundred two million, four hundred seventy-nine thousand, five hundred twenty-seven".