64936124139 has 16 divisors (see below), whose sum is σ = 87100012800. Its totient is φ = 43032221856.

The previous prime is 64936124137. The next prime is 64936124191. The reversal of 64936124139 is 93142163946.

It is not a de Polignac number, because 64936124139 - 2¹ = 64936124137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64936124137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266682 + ... + 448320.

It is an arithmetic number, because the mean of its divisors is an integer number (5443750800).

Almost surely, 2^64936124139 is an apocalyptic number.

64936124139 is a deficient number, since it is larger than the sum of its proper divisors (22163888661).

64936124139 is a wasteful number, since it uses less digits than its factorization.

64936124139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182354.

The product of its digits is 839808, while the sum is 48.

The spelling of 64936124139 in words is "sixty-four billion, nine hundred thirty-six million, one hundred twenty-four thousand, one hundred thirty-nine".