64110513251 has 2 divisors, whose sum is σ = 64110513252. Its totient is φ = 64110513250.

The previous prime is 64110513223. The next prime is 64110513253. The reversal of 64110513251 is 15231501146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64110513251 is a prime.

It is a super-2 number, since 2×64110513251² (a number of 22 digits) contains 22 as substring.

Together with 64110513253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64110513253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32055256625 + 32055256626.

It is an arithmetic number, because the mean of its divisors is an integer number (32055256626).

Almost surely, 2^64110513251 is an apocalyptic number.

64110513251 is a deficient number, since it is larger than the sum of its proper divisors (1).

64110513251 is an equidigital number, since it uses as much as digits as its factorization.

64110513251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 64110513251 in words is "sixty-four billion, one hundred ten million, five hundred thirteen thousand, two hundred fifty-one".