44542963881 has 32 divisors (see below), whose sum is σ = 71269520000. Its totient is φ = 27332437824.

The previous prime is 44542963813. The next prime is 44542963889. The reversal of 44542963881 is 18836924544.

44542963881 is a `hidden beast` number, since 4 + 4 + 542 + 96 + 3 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 44542963881 - 2¹¹ = 44542961833 is a prime.

It is a super-2 number, since 2×44542963881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44542963889) 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, 59311 + ... + 304308.

It is an arithmetic number, because the mean of its divisors is an integer number (2227172500).

Almost surely, 2^44542963881 is an apocalyptic number.

It is an amenable number.

44542963881 is a deficient number, since it is larger than the sum of its proper divisors (26726556119).

44542963881 is a wasteful number, since it uses less digits than its factorization.

44542963881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363990 (or 363984 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 44542963881 in words is "forty-four billion, five hundred forty-two million, nine hundred sixty-three thousand, eight hundred eighty-one".