57045356545631 has 4 divisors (see below), whose sum is σ = 57732649998072. Its totient is φ = 56358063093192.

The previous prime is 57045356545613. The next prime is 57045356545637. The reversal of 57045356545631 is 13654565354075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57045356545631 is a prime.

It is a super-2 number, since 2×57045356545631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57045356545637) 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, 343646726096 + ... + 343646726261.

It is an arithmetic number, because the mean of its divisors is an integer number (14433162499518).

Almost surely, 2^{57045356545631} is an apocalyptic number.

57045356545631 is a deficient number, since it is larger than the sum of its proper divisors (687293452441).

57045356545631 is an equidigital number, since it uses as much as digits as its factorization.

57045356545631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687293452440.

The product of its (nonzero) digits is 113400000, while the sum is 59.

The spelling of 57045356545631 in words is "fifty-seven trillion, forty-five billion, three hundred fifty-six million, five hundred forty-five thousand, six hundred thirty-one".