77215093504 has 18 divisors (see below), whose sum is σ = 154128566060. Its totient is φ = 38607546624.

The previous prime is 77215093447. The next prime is 77215093547. The reversal of 77215093504 is 40539051277.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150810474 + ... + 150810985.

Almost surely, 2^77215093504 is an apocalyptic number.

It is an amenable number.

77215093504 is a deficient number, since it is larger than the sum of its proper divisors (76913472556).

77215093504 is an equidigital number, since it uses as much as digits as its factorization.

77215093504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301621475 (or 301621461 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 77215093504 in words is "seventy-seven billion, two hundred fifteen million, ninety-three thousand, five hundred four".