77505703162672 has 20 divisors (see below), whose sum is σ = 152712508352040. Its totient is φ = 38096023587968.

The previous prime is 77505703162627. The next prime is 77505703162681. The reversal of 77505703162672 is 27626130750577.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41051748613 + ... + 41051750500.

It is an arithmetic number, because the mean of its divisors is an integer number (7635625417602).

Almost surely, 2^{77505703162672} is an apocalyptic number.

It is an amenable number.

77505703162672 is a deficient number, since it is larger than the sum of its proper divisors (75206805189368).

77505703162672 is a wasteful number, since it uses less digits than its factorization.

77505703162672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82103499180 (or 82103499174 counting only the distinct ones).

The product of its (nonzero) digits is 25930800, while the sum is 58.

The spelling of 77505703162672 in words is "seventy-seven trillion, five hundred five billion, seven hundred three million, one hundred sixty-two thousand, six hundred seventy-two".