44254140639 has 16 divisors (see below), whose sum is σ = 59175251328. Its totient is φ = 29417949792.

The previous prime is 44254140617. The next prime is 44254140647. The reversal of 44254140639 is 93604145244.

44254140639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44254140639 - 2⁵ = 44254140607 is a prime.

It is a super-3 number, since 3×44254140639³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44254140639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44254140659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4791544 + ... + 4800770.

It is an arithmetic number, because the mean of its divisors is an integer number (3698453208).

Almost surely, 2^44254140639 is an apocalyptic number.

44254140639 is a deficient number, since it is larger than the sum of its proper divisors (14921110689).

44254140639 is a wasteful number, since it uses less digits than its factorization.

44254140639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13654.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 44254140639 in words is "forty-four billion, two hundred fifty-four million, one hundred forty thousand, six hundred thirty-nine".