44961336981 has 32 divisors (see below), whose sum is σ = 73896422400. Its totient is φ = 26787432240.

The previous prime is 44961336967. The next prime is 44961337067. The reversal of 44961336981 is 18963316944.

44961336981 is a `hidden beast` number, since 4 + 496 + 13 + 3 + 69 + 81 = 666.

It is not a de Polignac number, because 44961336981 - 2¹⁴ = 44961320597 is a prime.

It is a super-2 number, since 2×44961336981² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44961334981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1265401 + ... + 1300446.

It is an arithmetic number, because the mean of its divisors is an integer number (2309263200).

Almost surely, 2^44961336981 is an apocalyptic number.

It is an amenable number.

44961336981 is a deficient number, since it is larger than the sum of its proper divisors (28935085419).

44961336981 is a wasteful number, since it uses less digits than its factorization.

44961336981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565926 (or 2565920 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 44961336981 in words is "forty-four billion, nine hundred sixty-one million, three hundred thirty-six thousand, nine hundred eighty-one".