64708844823 has 24 divisors (see below), whose sum is σ = 106863286400. Its totient is φ = 36961827984.

The previous prime is 64708844819. The next prime is 64708844839. The reversal of 64708844823 is 32844880746.

It is a happy number.

It is not a de Polignac number, because 64708844823 - 2² = 64708844819 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64708844823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64708844803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42313 + ... + 362226.

Almost surely, 2^64708844823 is an apocalyptic number.

64708844823 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

64708844823 is a deficient number, since it is larger than the sum of its proper divisors (42154441577).

64708844823 is a wasteful number, since it uses less digits than its factorization.

64708844823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407091 (or 407088 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 54.

The spelling of 64708844823 in words is "sixty-four billion, seven hundred eight million, eight hundred forty-four thousand, eight hundred twenty-three".