64623599023 has 2 divisors, whose sum is σ = 64623599024. Its totient is φ = 64623599022.

The previous prime is 64623599021. The next prime is 64623599059. The reversal of 64623599023 is 32099532646.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64623599023 - 2¹ = 64623599021 is a prime.

Together with 64623599021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64623599021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32311799511 + 32311799512.

It is an arithmetic number, because the mean of its divisors is an integer number (32311799512).

Almost surely, 2^64623599023 is an apocalyptic number.

64623599023 is a deficient number, since it is larger than the sum of its proper divisors (1).

64623599023 is an equidigital number, since it uses as much as digits as its factorization.

64623599023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 49.

The spelling of 64623599023 in words is "sixty-four billion, six hundred twenty-three million, five hundred ninety-nine thousand, twenty-three".