64554315823 has 2 divisors, whose sum is σ = 64554315824. Its totient is φ = 64554315822.

The previous prime is 64554315757. The next prime is 64554315857. The reversal of 64554315823 is 32851345546.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64554315823 - 2²¹ = 64552218671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64554315863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32277157911 + 32277157912.

It is an arithmetic number, because the mean of its divisors is an integer number (32277157912).

Almost surely, 2^64554315823 is an apocalyptic number.

64554315823 is a deficient number, since it is larger than the sum of its proper divisors (1).

64554315823 is an equidigital number, since it uses as much as digits as its factorization.

64554315823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728000, while the sum is 46.

The spelling of 64554315823 in words is "sixty-four billion, five hundred fifty-four million, three hundred fifteen thousand, eight hundred twenty-three".