64839107463 has 16 divisors (see below), whose sum is σ = 93109524480. Its totient is φ = 39897896544.

The previous prime is 64839107449. The next prime is 64839107471. The reversal of 64839107463 is 36470193846.

64839107463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64839107463 - 2¹⁰ = 64839106439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64839107413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510018 + ... + 624336.

It is an arithmetic number, because the mean of its divisors is an integer number (5819345280).

Almost surely, 2^64839107463 is an apocalyptic number.

64839107463 is a deficient number, since it is larger than the sum of its proper divisors (28270417017).

64839107463 is a wasteful number, since it uses less digits than its factorization.

64839107463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128878.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 64839107463 in words is "sixty-four billion, eight hundred thirty-nine million, one hundred seven thousand, four hundred sixty-three".