63964023807 has 16 divisors (see below), whose sum is σ = 85778307072. Its totient is φ = 42396454080.

The previous prime is 63964023779. The next prime is 63964023847. The reversal of 63964023807 is 70832046936.

It is not a de Polignac number, because 63964023807 - 2⁶ = 63964023743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63964023847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1063443 + ... + 1121979.

It is an arithmetic number, because the mean of its divisors is an integer number (5361144192).

Almost surely, 2^63964023807 is an apocalyptic number.

63964023807 is a deficient number, since it is larger than the sum of its proper divisors (21814283265).

63964023807 is a wasteful number, since it uses less digits than its factorization.

63964023807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60638.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 63964023807 in words is "sixty-three billion, nine hundred sixty-four million, twenty-three thousand, eight hundred seven".