64624770244 has 24 divisors (see below), whose sum is σ = 116798855040. Its totient is φ = 31263427296.

The previous prime is 64624770233. The next prime is 64624770247. The reversal of 64624770244 is 44207742646.

It is a junction number, because it is equal to n+sod(n) for n = 64624770194 and 64624770203.

It is not an unprimeable number, because it can be changed into a prime (64624770247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193212 + ... + 1246195.

It is an arithmetic number, because the mean of its divisors is an integer number (4866618960).

Almost surely, 2^64624770244 is an apocalyptic number.

It is an amenable number.

64624770244 is a deficient number, since it is larger than the sum of its proper divisors (52174084796).

64624770244 is a wasteful number, since it uses less digits than its factorization.

64624770244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439627 (or 2439625 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 46.

The spelling of 64624770244 in words is "sixty-four billion, six hundred twenty-four million, seven hundred seventy thousand, two hundred forty-four".