78506264156 has 12 divisors (see below), whose sum is σ = 137387926368. Its totient is φ = 39252570912.

The previous prime is 78506264147. The next prime is 78506264191. The reversal of 78506264156 is 65146260587.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 457565 + ... + 605291.

It is an arithmetic number, because the mean of its divisors is an integer number (11448993864).

Almost surely, 2^78506264156 is an apocalyptic number.

It is an amenable number.

78506264156 is a deficient number, since it is larger than the sum of its proper divisors (58881662212).

78506264156 is a wasteful number, since it uses less digits than its factorization.

78506264156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280588 (or 280586 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 78506264156 in words is "seventy-eight billion, five hundred six million, two hundred sixty-four thousand, one hundred fifty-six".