44250037921 has 6 divisors (see below), whose sum is σ = 44789601170. Its totient is φ = 43716898128.

The previous prime is 44250037903. The next prime is 44250037969. The reversal of 44250037921 is 12973005244.

44250037921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43332250896 + 917787025 = 208164^2 + 30295^2 .

It is not a de Polignac number, because 44250037921 - 2⁵ = 44250037889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44250037421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3204756 + ... + 3218533.

Almost surely, 2^44250037921 is an apocalyptic number.

It is an amenable number.

44250037921 is a deficient number, since it is larger than the sum of its proper divisors (539563249).

44250037921 is an frugal number, since it uses more digits than its factorization.

44250037921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423455 (or 6423372 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 44250037921 in words is "forty-four billion, two hundred fifty million, thirty-seven thousand, nine hundred twenty-one".