72236770145612 has 12 divisors (see below), whose sum is σ = 126414414590520. Its totient is φ = 36118365976896.

The previous prime is 72236770145587. The next prime is 72236770145623. The reversal of 72236770145612 is 21654107763227.

It is a super-2 number, since 2×72236770145612² (a number of 29 digits) contains 22 as substring.

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, 6920339 + ... + 13869557.

It is an arithmetic number, because the mean of its divisors is an integer number (10534534549210).

Almost surely, 2^{72236770145612} is an apocalyptic number.

It is an amenable number.

72236770145612 is a deficient number, since it is larger than the sum of its proper divisors (54177644444908).

72236770145612 is a wasteful number, since it uses less digits than its factorization.

72236770145612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547960 (or 9547958 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 72236770145612 in words is "seventy-two trillion, two hundred thirty-six billion, seven hundred seventy million, one hundred forty-five thousand, six hundred twelve".