64360139188 has 12 divisors (see below), whose sum is σ = 112678413120. Its totient is φ = 32166306872.

The previous prime is 64360139171. The next prime is 64360139219. The reversal of 64360139188 is 88193106346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3430156 + ... + 3448867.

It is an arithmetic number, because the mean of its divisors is an integer number (9389867760).

Almost surely, 2^64360139188 is an apocalyptic number.

It is an amenable number.

64360139188 is a deficient number, since it is larger than the sum of its proper divisors (48318273932).

64360139188 is a wasteful number, since it uses less digits than its factorization.

64360139188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881366 (or 6881364 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 64360139188 in words is "sixty-four billion, three hundred sixty million, one hundred thirty-nine thousand, one hundred eighty-eight".