64577634463 has 2 divisors, whose sum is σ = 64577634464. Its totient is φ = 64577634462.

The previous prime is 64577634421. The next prime is 64577634503. The reversal of 64577634463 is 36443677546.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64577634463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64577634263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32288817231 + 32288817232.

It is an arithmetic number, because the mean of its divisors is an integer number (32288817232).

Almost surely, 2^64577634463 is an apocalyptic number.

64577634463 is a deficient number, since it is larger than the sum of its proper divisors (1).

64577634463 is an equidigital number, since it uses as much as digits as its factorization.

64577634463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 55.

The spelling of 64577634463 in words is "sixty-four billion, five hundred seventy-seven million, six hundred thirty-four thousand, four hundred sixty-three".