64951598113 has 2 divisors, whose sum is σ = 64951598114. Its totient is φ = 64951598112.

The previous prime is 64951598081. The next prime is 64951598137. The reversal of 64951598113 is 31189515946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57490611984 + 7460986129 = 239772^2 + 86377^2 .

It is a cyclic number.

It is not a de Polignac number, because 64951598113 - 2⁵ = 64951598081 is a prime.

It is not a weakly prime, because it can be changed into another prime (64951598143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32475799056 + 32475799057.

It is an arithmetic number, because the mean of its divisors is an integer number (32475799057).

Almost surely, 2^64951598113 is an apocalyptic number.

It is an amenable number.

64951598113 is a deficient number, since it is larger than the sum of its proper divisors (1).

64951598113 is an equidigital number, since it uses as much as digits as its factorization.

64951598113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 52.

The spelling of 64951598113 in words is "sixty-four billion, nine hundred fifty-one million, five hundred ninety-eight thousand, one hundred thirteen".