72427324167057 has 4 divisors (see below), whose sum is σ = 96569765556080. Its totient is φ = 48284882778036.

The previous prime is 72427324167053. The next prime is 72427324167073. The reversal of 72427324167057 is 75076142372427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 72427324167057 - 2² = 72427324167053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72427324166988 and 72427324167006.

It is not an unprimeable number, because it can be changed into a prime (72427324167053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12071220694507 + ... + 12071220694512.

It is an arithmetic number, because the mean of its divisors is an integer number (24142441389020).

Almost surely, 2^{72427324167057} is an apocalyptic number.

It is an amenable number.

72427324167057 is a deficient number, since it is larger than the sum of its proper divisors (24142441389023).

72427324167057 is a wasteful number, since it uses less digits than its factorization.

72427324167057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24142441389022.

The product of its (nonzero) digits is 27659520, while the sum is 57.

The spelling of 72427324167057 in words is "seventy-two trillion, four hundred twenty-seven billion, three hundred twenty-four million, one hundred sixty-seven thousand, fifty-seven".