44640743731 has 8 divisors (see below), whose sum is σ = 45388954544. Its totient is φ = 43893061920.

The previous prime is 44640743689. The next prime is 44640743761. The reversal of 44640743731 is 13734704644.

44640743731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44640743731 - 2¹¹ = 44640741683 is a prime.

It is a super-2 number, since 2×44640743731² (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 (44640743761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39796 + ... + 301438.

It is an arithmetic number, because the mean of its divisors is an integer number (5673619318).

Almost surely, 2^44640743731 is an apocalyptic number.

44640743731 is a deficient number, since it is larger than the sum of its proper divisors (748210813).

44640743731 is a wasteful number, since it uses less digits than its factorization.

44640743731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264501.

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 44640743731 in words is "forty-four billion, six hundred forty million, seven hundred forty-three thousand, seven hundred thirty-one".