72785890177996 has 12 divisors (see below), whose sum is σ = 128806491045960. Its totient is φ = 35984035593440.

The previous prime is 72785890177961. The next prime is 72785890177997. The reversal of 72785890177996 is 69977109858727.

It is a super-3 number, since 3×72785890177996³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (72785890177997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102227373490 + ... + 102227374201.

It is an arithmetic number, because the mean of its divisors is an integer number (10733874253830).

Almost surely, 2^{72785890177996} is an apocalyptic number.

It is an amenable number.

72785890177996 is a deficient number, since it is larger than the sum of its proper divisors (56020600867964).

72785890177996 is a wasteful number, since it uses less digits than its factorization.

72785890177996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204454747784 (or 204454747782 counting only the distinct ones).

The product of its (nonzero) digits is 6721263360, while the sum is 85.

The spelling of 72785890177996 in words is "seventy-two trillion, seven hundred eighty-five billion, eight hundred ninety million, one hundred seventy-seven thousand, nine hundred ninety-six".