44623181972 has 12 divisors (see below), whose sum is σ = 79995216756. Its totient is φ = 21767405760.

The previous prime is 44623181971. The next prime is 44623182001. The reversal of 44623181972 is 27918132644.

It can be written as a sum of positive squares in 2 ways, for example, as 9487928836 + 35135253136 = 97406^2 + 187444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44623181971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136046123 + ... + 136046450.

It is an arithmetic number, because the mean of its divisors is an integer number (6666268063).

Almost surely, 2^44623181972 is an apocalyptic number.

It is an amenable number.

44623181972 is a deficient number, since it is larger than the sum of its proper divisors (35372034784).

44623181972 is a wasteful number, since it uses less digits than its factorization.

44623181972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272092618 (or 272092616 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The spelling of 44623181972 in words is "forty-four billion, six hundred twenty-three million, one hundred eighty-one thousand, nine hundred seventy-two".