57967902721 has 2 divisors, whose sum is σ = 57967902722. Its totient is φ = 57967902720.

The previous prime is 57967902691. The next prime is 57967902749. The reversal of 57967902721 is 12720976975.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57801776400 + 166126321 = 240420^2 + 12889^2 .

It is a cyclic number.

It is not a de Polignac number, because 57967902721 - 2³⁵ = 23608164353 is a prime.

It is not a weakly prime, because it can be changed into another prime (57967902781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28983951360 + 28983951361.

It is an arithmetic number, because the mean of its divisors is an integer number (28983951361).

It is a Proth number, since it is equal to 110565 ⋅ 2¹⁹ + 1 and 110565 < 2¹⁹.

Almost surely, 2^57967902721 is an apocalyptic number.

It is an amenable number.

57967902721 is a deficient number, since it is larger than the sum of its proper divisors (1).

57967902721 is an equidigital number, since it uses as much as digits as its factorization.

57967902721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3333960, while the sum is 55.

The spelling of 57967902721 in words is "fifty-seven billion, nine hundred sixty-seven million, nine hundred two thousand, seven hundred twenty-one".