64577634503 has 2 divisors, whose sum is σ = 64577634504. Its totient is φ = 64577634502.

The previous prime is 64577634463. The next prime is 64577634509. The reversal of 64577634503 is 30543677546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64577634503 - 2¹⁸ = 64577372359 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 (64577634509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32288817251 + 32288817252.

It is an arithmetic number, because the mean of its divisors is an integer number (32288817252).

Almost surely, 2^64577634503 is an apocalyptic number.

64577634503 is a deficient number, since it is larger than the sum of its proper divisors (1).

64577634503 is an equidigital number, since it uses as much as digits as its factorization.

64577634503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 50.

The spelling of 64577634503 in words is "sixty-four billion, five hundred seventy-seven million, six hundred thirty-four thousand, five hundred three".