64551912023 has 2 divisors, whose sum is σ = 64551912024. Its totient is φ = 64551912022.

The previous prime is 64551911993. The next prime is 64551912043. The reversal of 64551912023 is 32021915546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64551912023 - 2¹⁰ = 64551910999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64551912043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32275956011 + 32275956012.

It is an arithmetic number, because the mean of its divisors is an integer number (32275956012).

Almost surely, 2^64551912023 is an apocalyptic number.

64551912023 is a deficient number, since it is larger than the sum of its proper divisors (1).

64551912023 is an equidigital number, since it uses as much as digits as its factorization.

64551912023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 64551912023 in words is "sixty-four billion, five hundred fifty-one million, nine hundred twelve thousand, twenty-three".