72187593675124 has 6 divisors (see below), whose sum is σ = 126328288931474. Its totient is φ = 36093796837560.

The previous prime is 72187593675097. The next prime is 72187593675139. The reversal of 72187593675124 is 42157639578127.

It can be written as a sum of positive squares in only one way, i.e., 72132204052624 + 55389622500 = 8493068^2 + 235350^2 .

It is a super-2 number, since 2×72187593675124² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72187593675124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9023449209387 + ... + 9023449209394.

Almost surely, 2^{72187593675124} is an apocalyptic number.

It is an amenable number.

72187593675124 is a deficient number, since it is larger than the sum of its proper divisors (54140695256350).

72187593675124 is a wasteful number, since it uses less digits than its factorization.

72187593675124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18046898418785 (or 18046898418783 counting only the distinct ones).

The product of its digits is 177811200, while the sum is 67.

The spelling of 72187593675124 in words is "seventy-two trillion, one hundred eighty-seven billion, five hundred ninety-three million, six hundred seventy-five thousand, one hundred twenty-four".