64015157872 has 10 divisors (see below), whose sum is σ = 124029368408. Its totient is φ = 32007578928.

The previous prime is 64015157867. The next prime is 64015157879. The reversal of 64015157872 is 27875151046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64015157879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000473668 + ... + 2000473699.

Almost surely, 2^64015157872 is an apocalyptic number.

It is an amenable number.

64015157872 is a deficient number, since it is larger than the sum of its proper divisors (60014210536).

64015157872 is a wasteful number, since it uses less digits than its factorization.

64015157872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000947375 (or 4000947369 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 46.

The spelling of 64015157872 in words is "sixty-four billion, fifteen million, one hundred fifty-seven thousand, eight hundred seventy-two".