64623599039 has 8 divisors (see below), whose sum is σ = 65458344000. Its totient is φ = 63789272352.

The previous prime is 64623599023. The next prime is 64623599059. The reversal of 64623599039 is 93099532646.

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

It is a cyclic number.

It is not a de Polignac number, because 64623599039 - 2⁴ = 64623599023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64623599059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212597 + ... + 417665.

It is an arithmetic number, because the mean of its divisors is an integer number (8182293000).

Almost surely, 2^64623599039 is an apocalyptic number.

64623599039 is a deficient number, since it is larger than the sum of its proper divisors (834744961).

64623599039 is a wasteful number, since it uses less digits than its factorization.

64623599039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209137.

The product of its (nonzero) digits is 9447840, while the sum is 56.

The spelling of 64623599039 in words is "sixty-four billion, six hundred twenty-three million, five hundred ninety-nine thousand, thirty-nine".