57072970919 has 2 divisors, whose sum is σ = 57072970920. Its totient is φ = 57072970918.

The previous prime is 57072970897. The next prime is 57072970943. The reversal of 57072970919 is 91907927075.

57072970919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57072970919 is a prime.

It is a super-2 number, since 2×57072970919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57072970519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28536485459 + 28536485460.

It is an arithmetic number, because the mean of its divisors is an integer number (28536485460).

Almost surely, 2^57072970919 is an apocalyptic number.

57072970919 is a deficient number, since it is larger than the sum of its proper divisors (1).

57072970919 is an equidigital number, since it uses as much as digits as its factorization.

57072970919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2500470, while the sum is 56.

The spelling of 57072970919 in words is "fifty-seven billion, seventy-two million, nine hundred seventy thousand, nine hundred nineteen".