44347145881 has 4 divisors (see below), whose sum is σ = 44464157200. Its totient is φ = 44230134564.

The previous prime is 44347145873. The next prime is 44347145891. The reversal of 44347145881 is 18854174344.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44347145881 - 2³ = 44347145873 is a prime.

It is a super-2 number, since 2×44347145881² (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 (44347145891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58505091 + ... + 58505848.

It is an arithmetic number, because the mean of its divisors is an integer number (11116039300).

Almost surely, 2^44347145881 is an apocalyptic number.

It is an amenable number.

44347145881 is a deficient number, since it is larger than the sum of its proper divisors (117011319).

44347145881 is a wasteful number, since it uses less digits than its factorization.

44347145881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117011318.

The product of its digits is 1720320, while the sum is 49.

The spelling of 44347145881 in words is "forty-four billion, three hundred forty-seven million, one hundred forty-five thousand, eight hundred eighty-one".