78504636692 has 12 divisors (see below), whose sum is σ = 137385664416. Its totient is φ = 39251589720.

The previous prime is 78504636689. The next prime is 78504636709. The reversal of 78504636692 is 29663640587.

It is a happy number.

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, 113633 + ... + 412215.

It is an arithmetic number, because the mean of its divisors is an integer number (11448805368).

Almost surely, 2^78504636692 is an apocalyptic number.

It is an amenable number.

78504636692 is a deficient number, since it is larger than the sum of its proper divisors (58881027724).

78504636692 is a wasteful number, since it uses less digits than its factorization.

78504636692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364318 (or 364316 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 78504636692 in words is "seventy-eight billion, five hundred four million, six hundred thirty-six thousand, six hundred ninety-two".