64045870444 has 12 divisors (see below), whose sum is σ = 112082538568. Its totient is φ = 32022288000.

The previous prime is 64045870417. The next prime is 64045870519. The reversal of 64045870444 is 44407854046.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64045870394 and 64045870403.

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, 112519 + ... + 375169.

Almost surely, 2^64045870444 is an apocalyptic number.

It is an amenable number.

64045870444 is a deficient number, since it is larger than the sum of its proper divisors (48036668124).

64045870444 is a wasteful number, since it uses less digits than its factorization.

64045870444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323616 (or 323614 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 46.

The spelling of 64045870444 in words is "sixty-four billion, forty-five million, eight hundred seventy thousand, four hundred forty-four".