64906384370 has 32 divisors (see below), whose sum is σ = 124221600000. Its totient is φ = 24333089536.

The previous prime is 64906384363. The next prime is 64906384379. The reversal of 64906384370 is 7348360946.

It is not an unprimeable number, because it can be changed into a prime (64906384379) 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, 758120 + ... + 839379.

It is an arithmetic number, because the mean of its divisors is an integer number (3881925000).

Almost surely, 2^64906384370 is an apocalyptic number.

64906384370 is a deficient number, since it is larger than the sum of its proper divisors (59315215630).

64906384370 is a wasteful number, since it uses less digits than its factorization.

64906384370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597762.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 64906384370 in words is "sixty-four billion, nine hundred six million, three hundred eighty-four thousand, three hundred seventy".