78975810516 has 48 divisors (see below), whose sum is σ = 194723020800. Its totient is φ = 24861943392.

The previous prime is 78975810491. The next prime is 78975810523. The reversal of 78975810516 is 61501857987.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1789236 + ... + 1832843.

It is an arithmetic number, because the mean of its divisors is an integer number (4056729600).

Almost surely, 2^78975810516 is an apocalyptic number.

It is an amenable number.

78975810516 is an abundant number, since it is smaller than the sum of its proper divisors (115747210284).

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

78975810516 is a wasteful number, since it uses less digits than its factorization.

78975810516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622188 (or 3622186 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 57.

The spelling of 78975810516 in words is "seventy-eight billion, nine hundred seventy-five million, eight hundred ten thousand, five hundred sixteen".