57445768121 has 8 divisors (see below), whose sum is σ = 65665422144. Its totient is φ = 49229393040.

The previous prime is 57445768109. The next prime is 57445768129. The reversal of 57445768121 is 12186754475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57445768121 - 2²⁶ = 57378659257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57445768121.

It is not an unprimeable number, because it can be changed into a prime (57445768129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782075 + ... + 852368.

It is an arithmetic number, because the mean of its divisors is an integer number (8208177768).

Almost surely, 2^57445768121 is an apocalyptic number.

It is an amenable number.

57445768121 is a deficient number, since it is larger than the sum of its proper divisors (8219654023).

57445768121 is a wasteful number, since it uses less digits than its factorization.

57445768121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639471.

The product of its digits is 1881600, while the sum is 50.

The spelling of 57445768121 in words is "fifty-seven billion, four hundred forty-five million, seven hundred sixty-eight thousand, one hundred twenty-one".