64386101831 has 2 divisors, whose sum is σ = 64386101832. Its totient is φ = 64386101830.

The previous prime is 64386101789. The next prime is 64386101849. The reversal of 64386101831 is 13810168346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64386101831 - 2²⁶ = 64318992967 is a prime.

It is a super-2 number, since 2×64386101831² (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 (64386101431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32193050915 + 32193050916.

It is an arithmetic number, because the mean of its divisors is an integer number (32193050916).

Almost surely, 2^64386101831 is an apocalyptic number.

64386101831 is a deficient number, since it is larger than the sum of its proper divisors (1).

64386101831 is an equidigital number, since it uses as much as digits as its factorization.

64386101831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 64386101831 in words is "sixty-four billion, three hundred eighty-six million, one hundred one thousand, eight hundred thirty-one".