44537681912481 has 12 divisors (see below), whose sum is σ = 64334762123008. Its totient is φ = 29690608749624.

The previous prime is 44537681912431. The next prime is 44537681912519. The reversal of 44537681912481 is 18421918673544.

It is a happy number.

44537681912481 is a `hidden beast` number, since 4 + 4 + 5 + 3 + 7 + 68 + 1 + 91 + 2 + 481 = 666.

It is not a de Polignac number, because 44537681912481 - 2⁹ = 44537681911969 is a prime.

It is a super-2 number, since 2×44537681912481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44537681912431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98026765 + ... + 98480058.

Almost surely, 2^{44537681912481} is an apocalyptic number.

It is an amenable number.

44537681912481 is a deficient number, since it is larger than the sum of its proper divisors (19797080210527).

44537681912481 is a wasteful number, since it uses less digits than its factorization.

44537681912481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196532012 (or 196532009 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 44537681912481 in words is "forty-four trillion, five hundred thirty-seven billion, six hundred eighty-one million, nine hundred twelve thousand, four hundred eighty-one".