64039398910 has 8 divisors (see below), whose sum is σ = 115270918056. Its totient is φ = 25615759560.

The previous prime is 64039398883. The next prime is 64039398923. The reversal of 64039398910 is 1989393046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64039398910² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3201969936 + ... + 3201969955.

It is an arithmetic number, because the mean of its divisors is an integer number (14408864757).

Almost surely, 2^64039398910 is an apocalyptic number.

64039398910 is a deficient number, since it is larger than the sum of its proper divisors (51231519146).

64039398910 is a wasteful number, since it uses less digits than its factorization.

64039398910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403939898.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 64039398910 in words is "sixty-four billion, thirty-nine million, three hundred ninety-eight thousand, nine hundred ten".