44894444691972 has 24 divisors (see below), whose sum is σ = 104753814256000. Its totient is φ = 14964799186656.

The previous prime is 44894444691883. The next prime is 44894444691979. The reversal of 44894444691972 is 27919644449844.

It is a super-2 number, since 2×44894444691972² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44894444691894 and 44894444691903.

It is not an unprimeable number, because it can be changed into a prime (44894444691979) 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, 18337029 + ... + 20640627.

Almost surely, 2^{44894444691972} is an apocalyptic number.

It is an amenable number.

44894444691972 is an abundant number, since it is smaller than the sum of its proper divisors (59859369564028).

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

44894444691972 is a wasteful number, since it uses less digits than its factorization.

44894444691972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927675 (or 3927673 counting only the distinct ones).

The product of its digits is 2006581248, while the sum is 75.

The spelling of 44894444691972 in words is "forty-four trillion, eight hundred ninety-four billion, four hundred forty-four million, six hundred ninety-one thousand, nine hundred seventy-two".