44016758078681 has 4 divisors (see below), whose sum is σ = 44047346515200. Its totient is φ = 43986169642164.

The previous prime is 44016758078647. The next prime is 44016758078687. The reversal of 44016758078681 is 18687085761044.

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 a de Polignac number, because none of the positive numbers 2^k-44016758078681 is a prime.

It is a super-2 number, since 2×44016758078681² (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 (44016758078687) 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, 15294216101 + ... + 15294218978.

It is an arithmetic number, because the mean of its divisors is an integer number (11011836628800).

Almost surely, 2^{44016758078681} is an apocalyptic number.

It is an amenable number.

44016758078681 is a deficient number, since it is larger than the sum of its proper divisors (30588436519).

44016758078681 is a wasteful number, since it uses less digits than its factorization.

44016758078681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30588436518.

The product of its (nonzero) digits is 72253440, while the sum is 65.

The spelling of 44016758078681 in words is "forty-four trillion, sixteen billion, seven hundred fifty-eight million, seventy-eight thousand, six hundred eighty-one".