64157031253193 has 2 divisors, whose sum is σ = 64157031253194. Its totient is φ = 64157031253192.

The previous prime is 64157031253121. The next prime is 64157031253247. The reversal of 64157031253193 is 39135213075146.

64157031253193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42561427783744 + 21595603469449 = 6523912^2 + 4647107^2 .

It is a cyclic number.

It is not a de Polignac number, because 64157031253193 - 2¹² = 64157031249097 is a prime.

It is a super-2 number, since 2×64157031253193² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64157031213193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32078515626596 + 32078515626597.

It is an arithmetic number, because the mean of its divisors is an integer number (32078515626597).

Almost surely, 2^{64157031253193} is an apocalyptic number.

It is an amenable number.

64157031253193 is a deficient number, since it is larger than the sum of its proper divisors (1).

64157031253193 is an equidigital number, since it uses as much as digits as its factorization.

64157031253193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 64157031253193 in words is "sixty-four trillion, one hundred fifty-seven billion, thirty-one million, two hundred fifty-three thousand, one hundred ninety-three".