44642602664 has 32 divisors (see below), whose sum is σ = 91792535040. Its totient is φ = 20185843200.

The previous prime is 44642602651. The next prime is 44642602679. The reversal of 44642602664 is 46620624644.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311209 + ... + 1344824.

It is an arithmetic number, because the mean of its divisors is an integer number (2868516720).

Almost surely, 2^44642602664 is an apocalyptic number.

44642602664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44642602664 is an abundant number, since it is smaller than the sum of its proper divisors (47149932376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44642602664 is a wasteful number, since it uses less digits than its factorization.

44642602664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656241 (or 2656237 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 44642602664 in words is "forty-four billion, six hundred forty-two million, six hundred two thousand, six hundred sixty-four".