64464252623 has 2 divisors, whose sum is σ = 64464252624. Its totient is φ = 64464252622.

The previous prime is 64464252617. The next prime is 64464252649. The reversal of 64464252623 is 32625246446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64464252623 - 2⁴ = 64464252607 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64464212623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32232126311 + 32232126312.

It is an arithmetic number, because the mean of its divisors is an integer number (32232126312).

Almost surely, 2^64464252623 is an apocalyptic number.

64464252623 is a deficient number, since it is larger than the sum of its proper divisors (1).

64464252623 is an equidigital number, since it uses as much as digits as its factorization.

64464252623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 44.

The spelling of 64464252623 in words is "sixty-four billion, four hundred sixty-four million, two hundred fifty-two thousand, six hundred twenty-three".