57672724193521 has 2 divisors, whose sum is σ = 57672724193522. Its totient is φ = 57672724193520.

The previous prime is 57672724193503. The next prime is 57672724193573. The reversal of 57672724193521 is 12539142727675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50014442823921 + 7658281369600 = 7072089^2 + 2767360^2 .

It is a cyclic number.

It is not a de Polignac number, because 57672724193521 - 2³¹ = 57670576709873 is a prime.

It is a super-2 number, since 2×57672724193521² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57672724193521.

It is not a weakly prime, because it can be changed into another prime (57672724197521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28836362096760 + 28836362096761.

It is an arithmetic number, because the mean of its divisors is an integer number (28836362096761).

Almost surely, 2^{57672724193521} is an apocalyptic number.

It is an amenable number.

57672724193521 is a deficient number, since it is larger than the sum of its proper divisors (1).

57672724193521 is an equidigital number, since it uses as much as digits as its factorization.

57672724193521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44452800, while the sum is 61.

The spelling of 57672724193521 in words is "fifty-seven trillion, six hundred seventy-two billion, seven hundred twenty-four million, one hundred ninety-three thousand, five hundred twenty-one".