65172873912272 has 40 divisors (see below), whose sum is σ = 148211670798336. Its totient is φ = 27176333521536.

The previous prime is 65172873912131. The next prime is 65172873912277. The reversal of 65172873912272 is 27221937827156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65172873912277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7863518288 + ... + 7863526575.

Almost surely, 2^{65172873912272} is an apocalyptic number.

It is an amenable number.

65172873912272 is an abundant number, since it is smaller than the sum of its proper divisors (83038796886064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65172873912272 is a wasteful number, since it uses less digits than its factorization.

65172873912272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15727044915 (or 15727044909 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 62.

The spelling of 65172873912272 in words is "sixty-five trillion, one hundred seventy-two billion, eight hundred seventy-three million, nine hundred twelve thousand, two hundred seventy-two".