72742256275 has 24 divisors (see below), whose sum is σ = 97158434240. Its totient is φ = 53706551040.

The previous prime is 72742256273. The next prime is 72742256281. The reversal of 72742256275 is 57265224727.

It is not a de Polignac number, because 72742256275 - 2¹ = 72742256273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72742256273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1829254 + ... + 1868596.

Almost surely, 2^72742256275 is an apocalyptic number.

72742256275 is a deficient number, since it is larger than the sum of its proper divisors (24416177965).

72742256275 is a wasteful number, since it uses less digits than its factorization.

72742256275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45055 (or 45050 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 49.

The spelling of 72742256275 in words is "seventy-two billion, seven hundred forty-two million, two hundred fifty-six thousand, two hundred seventy-five".