72125612773642 has 8 divisors (see below), whose sum is σ = 110827161091332. Its totient is φ = 35183225743200.

The previous prime is 72125612773639. The next prime is 72125612773699. The reversal of 72125612773642 is 24637721652127.

It can be written as a sum of positive squares in 2 ways, for example, as 48198458985121 + 23927153788521 = 6942511^2 + 4891539^2 .

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

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, 439790321709 + ... + 439790321872.

Almost surely, 2^{72125612773642} is an apocalyptic number.

72125612773642 is a deficient number, since it is larger than the sum of its proper divisors (38701548317690).

72125612773642 is a wasteful number, since it uses less digits than its factorization.

72125612773642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879580643624.

The product of its digits is 11854080, while the sum is 55.

The spelling of 72125612773642 in words is "seventy-two trillion, one hundred twenty-five billion, six hundred twelve million, seven hundred seventy-three thousand, six hundred forty-two".