57012721716279 has 32 divisors (see below), whose sum is σ = 90298205821440. Its totient is φ = 31306217443200.

The previous prime is 57012721716277. The next prime is 57012721716287. The reversal of 57012721716279 is 97261712721075.

It is not a de Polignac number, because 57012721716279 - 2¹ = 57012721716277 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57012721716277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221712612 + ... + 221969609.

It is an arithmetic number, because the mean of its divisors is an integer number (2821818931920).

Almost surely, 2^{57012721716279} is an apocalyptic number.

57012721716279 is a deficient number, since it is larger than the sum of its proper divisors (33285484105161).

57012721716279 is a wasteful number, since it uses less digits than its factorization.

57012721716279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443682471.

The product of its (nonzero) digits is 5186160, while the sum is 57.

The spelling of 57012721716279 in words is "fifty-seven trillion, twelve billion, seven hundred twenty-one million, seven hundred sixteen thousand, two hundred seventy-nine".