64810794054553 has 2 divisors, whose sum is σ = 64810794054554. Its totient is φ = 64810794054552.

The previous prime is 64810794054527. The next prime is 64810794054697. The reversal of 64810794054553 is 35545049701846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49313722551129 + 15497071503424 = 7022373^2 + 3936632^2 .

It is a cyclic number.

It is not a de Polignac number, because 64810794054553 - 2⁵ = 64810794054521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64810794054491 and 64810794054500.

It is not a weakly prime, because it can be changed into another prime (64810794064553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32405397027276 + 32405397027277.

It is an arithmetic number, because the mean of its divisors is an integer number (32405397027277).

Almost surely, 2^{64810794054553} is an apocalyptic number.

It is an amenable number.

64810794054553 is a deficient number, since it is larger than the sum of its proper divisors (1).

64810794054553 is an equidigital number, since it uses as much as digits as its factorization.

64810794054553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576000, while the sum is 61.

The spelling of 64810794054553 in words is "sixty-four trillion, eight hundred ten billion, seven hundred ninety-four million, fifty-four thousand, five hundred fifty-three".