72232058457 has 12 divisors (see below), whose sum is σ = 112360980004. Its totient is φ = 44450497440.

The previous prime is 72232058449. The next prime is 72232058461. The reversal of 72232058457 is 75485023227.

It can be written as a sum of positive squares in 2 ways, for example, as 32494028121 + 39738030336 = 180261^2 + 199344^2 .

It is not a de Polignac number, because 72232058457 - 2³ = 72232058449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72232058447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308683894 + ... + 308684127.

Almost surely, 2^72232058457 is an apocalyptic number.

It is an amenable number.

72232058457 is a deficient number, since it is larger than the sum of its proper divisors (40128921547).

72232058457 is a wasteful number, since it uses less digits than its factorization.

72232058457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617368040 (or 617368037 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 72232058457 in words is "seventy-two billion, two hundred thirty-two million, fifty-eight thousand, four hundred fifty-seven".