72193887625 has 16 divisors (see below), whose sum is σ = 91183502592. Its totient is φ = 57059257200.

The previous prime is 72193887613. The next prime is 72193887677. The reversal of 72193887625 is 52678839127.

It is a happy number.

It is not a de Polignac number, because 72193887625 - 2⁷ = 72193887497 is a prime.

It is a super-2 number, since 2×72193887625² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72193887625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3468849 + ... + 3489598.

It is an arithmetic number, because the mean of its divisors is an integer number (5698968912).

Almost surely, 2^72193887625 is an apocalyptic number.

It is an amenable number.

72193887625 is a deficient number, since it is larger than the sum of its proper divisors (18989614967).

72193887625 is an equidigital number, since it uses as much as digits as its factorization.

72193887625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958545 (or 6958535 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 58.

The spelling of 72193887625 in words is "seventy-two billion, one hundred ninety-three million, eight hundred eighty-seven thousand, six hundred twenty-five".