64013049376 has 12 divisors (see below), whose sum is σ = 126025691022. Its totient is φ = 32006524672.

The previous prime is 64013049343. The next prime is 64013049377. The reversal of 64013049376 is 67394031046.

It can be written as a sum of positive squares in only one way, i.e., 48542664976 + 15470384400 = 220324^2 + 124380^2 .

It is not an unprimeable number, because it can be changed into a prime (64013049377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000203865 + ... + 1000203928.

Almost surely, 2^64013049376 is an apocalyptic number.

It is an amenable number.

64013049376 is a deficient number, since it is larger than the sum of its proper divisors (62012641646).

64013049376 is a wasteful number, since it uses less digits than its factorization.

64013049376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000407803 (or 2000407795 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 64013049376 in words is "sixty-four billion, thirteen million, forty-nine thousand, three hundred seventy-six".