44005000681 has 4 divisors (see below), whose sum is σ = 45424516864. Its totient is φ = 42585484500.

The previous prime is 44005000661. The next prime is 44005000709. The reversal of 44005000681 is 18600050044.

44005000681 = T₁₇₁₂₇₈ + T₁₇₁₂₇₉ + T₁₇₁₂₈₀.

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 44005000681 - 2¹⁵ = 44004967913 is a prime.

It is a super-2 number, since 2×44005000681² (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 (44005000651) 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, 709758045 + ... + 709758106.

It is an arithmetic number, because the mean of its divisors is an integer number (11356129216).

Almost surely, 2^44005000681 is an apocalyptic number.

44005000681 is the 171280-th centered triangular number.

It is an amenable number.

44005000681 is a deficient number, since it is larger than the sum of its proper divisors (1419516183).

44005000681 is a wasteful number, since it uses less digits than its factorization.

44005000681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419516182.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 44005000681 in words is "forty-four billion, five million, six hundred eighty-one", and thus it is an aban number.