44642121442137 has 6 divisors (see below), whose sum is σ = 64483064305322. Its totient is φ = 29761414294752.

The previous prime is 44642121442081. The next prime is 44642121442151. The reversal of 44642121442137 is 73124412124644.

44642121442137 is a `hidden beast` number, since 4 + 4 + 6 + 4 + 2 + 1 + 214 + 421 + 3 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44143945216281 + 498176225856 = 6644091^2 + 705816^2 .

It is not a de Polignac number, because 44642121442137 - 2⁸ = 44642121441881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44642121442092 and 44642121442101.

It is not an unprimeable number, because it can be changed into a prime (44642121482137) 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, 2480117857888 + ... + 2480117857905.

Almost surely, 2^{44642121442137} is an apocalyptic number.

It is an amenable number.

44642121442137 is a deficient number, since it is larger than the sum of its proper divisors (19840942863185).

44642121442137 is a wasteful number, since it uses less digits than its factorization.

44642121442137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960235715799 (or 4960235715796 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 45.

The spelling of 44642121442137 in words is "forty-four trillion, six hundred forty-two billion, one hundred twenty-one million, four hundred forty-two thousand, one hundred thirty-seven".