59139251681 has 2 divisors, whose sum is σ = 59139251682. Its totient is φ = 59139251680.

The previous prime is 59139251651. The next prime is 59139251701. The reversal of 59139251681 is 18615293195.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29958071056 + 29181180625 = 173084^2 + 170825^2 .

It is a cyclic number.

It is not a de Polignac number, because 59139251681 - 2¹⁴ = 59139235297 is a prime.

It is a super-2 number, since 2×59139251681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (59139251641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29569625840 + 29569625841.

It is an arithmetic number, because the mean of its divisors is an integer number (29569625841).

Almost surely, 2^59139251681 is an apocalyptic number.

It is an amenable number.

59139251681 is a deficient number, since it is larger than the sum of its proper divisors (1).

59139251681 is an equidigital number, since it uses as much as digits as its factorization.

59139251681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 50.

The spelling of 59139251681 in words is "fifty-nine billion, one hundred thirty-nine million, two hundred fifty-one thousand, six hundred eighty-one".