64031439339 has 24 divisors (see below), whose sum is σ = 106239276000. Its totient is φ = 36403653888.

The previous prime is 64031439337. The next prime is 64031439341. The reversal of 64031439339 is 93393413046.

It is an interprime number because it is at equal distance from previous prime (64031439337) and next prime (64031439341).

It is not a de Polignac number, because 64031439339 - 2¹ = 64031439337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64031439294 and 64031439303.

It is not an unprimeable number, because it can be changed into a prime (64031439337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2567214 + ... + 2592035.

It is an arithmetic number, because the mean of its divisors is an integer number (4426636500).

Almost surely, 2^64031439339 is an apocalyptic number.

64031439339 is a deficient number, since it is larger than the sum of its proper divisors (42207836661).

64031439339 is a wasteful number, since it uses less digits than its factorization.

64031439339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159459 (or 5159456 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 45.

The spelling of 64031439339 in words is "sixty-four billion, thirty-one million, four hundred thirty-nine thousand, three hundred thirty-nine".