72178614325 has 12 divisors (see below), whose sum is σ = 89872864708. Its totient is φ = 57503289600.

The previous prime is 72178614311. The next prime is 72178614401. The reversal of 72178614325 is 52341687127.

It can be written as a sum of positive squares in 6 ways, for example, as 6889166001 + 65289448324 = 83001^2 + 255518^2 .

It is not a de Polignac number, because 72178614325 - 2¹⁷ = 72178483253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5983902 + ... + 5995951.

Almost surely, 2^72178614325 is an apocalyptic number.

It is an amenable number.

72178614325 is a deficient number, since it is larger than the sum of its proper divisors (17694250383).

72178614325 is a wasteful number, since it uses less digits than its factorization.

72178614325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11980104 (or 11980099 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The spelling of 72178614325 in words is "seventy-two billion, one hundred seventy-eight million, six hundred fourteen thousand, three hundred twenty-five".