77417817050072 has 32 divisors (see below), whose sum is σ = 145265621130000. Its totient is φ = 38680328125824.

The previous prime is 77417817050059. The next prime is 77417817050087. The reversal of 77417817050072 is 27005071871477.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61321418 + ... + 62571174.

Almost surely, 2^{77417817050072} is an apocalyptic number.

It is an amenable number.

77417817050072 is a deficient number, since it is larger than the sum of its proper divisors (67847804079928).

77417817050072 is a wasteful number, since it uses less digits than its factorization.

77417817050072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255475 (or 1255471 counting only the distinct ones).

The product of its (nonzero) digits is 5378240, while the sum is 56.

The spelling of 77417817050072 in words is "seventy-seven trillion, four hundred seventeen billion, eight hundred seventeen million, fifty thousand, seventy-two".