64633597929401 has 2 divisors, whose sum is σ = 64633597929402. Its totient is φ = 64633597929400.

The previous prime is 64633597929391. The next prime is 64633597929479. The reversal of 64633597929401 is 10492979533646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63534864207376 + 1098733722025 = 7970876^2 + 1048205^2 .

It is a cyclic number.

It is not a de Polignac number, because 64633597929401 - 2³⁰ = 64632524187577 is a prime.

It is not a weakly prime, because it can be changed into another prime (64633597929301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32316798964700 + 32316798964701.

It is an arithmetic number, because the mean of its divisors is an integer number (32316798964701).

Almost surely, 2^{64633597929401} is an apocalyptic number.

It is an amenable number.

64633597929401 is a deficient number, since it is larger than the sum of its proper divisors (1).

64633597929401 is an equidigital number, since it uses as much as digits as its factorization.

64633597929401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264539520, while the sum is 68.

The spelling of 64633597929401 in words is "sixty-four trillion, six hundred thirty-three billion, five hundred ninety-seven million, nine hundred twenty-nine thousand, four hundred one".