72572636494 has 8 divisors (see below), whose sum is σ = 108900306720. Its totient is φ = 36272534256.

The previous prime is 72572636471. The next prime is 72572636501. The reversal of 72572636494 is 49463627527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72572636494² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 6885414 + ... + 6895945.

It is an arithmetic number, because the mean of its divisors is an integer number (13612538340).

Almost surely, 2^72572636494 is an apocalyptic number.

72572636494 is a deficient number, since it is larger than the sum of its proper divisors (36327670226).

72572636494 is a wasteful number, since it uses less digits than its factorization.

72572636494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13783994.

The product of its digits is 15240960, while the sum is 55.

The spelling of 72572636494 in words is "seventy-two billion, five hundred seventy-two million, six hundred thirty-six thousand, four hundred ninety-four".