44635732139 has 4 divisors (see below), whose sum is σ = 45095894424. Its totient is φ = 44175569856.

The previous prime is 44635732051. The next prime is 44635732153. The reversal of 44635732139 is 93123753644.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44635732139 - 2²⁸ = 44367296683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44635732093 and 44635732102.

It is not an unprimeable number, because it can be changed into a prime (44635732189) 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, 230080997 + ... + 230081190.

It is an arithmetic number, because the mean of its divisors is an integer number (11273973606).

Almost surely, 2^44635732139 is an apocalyptic number.

44635732139 is a deficient number, since it is larger than the sum of its proper divisors (460162285).

44635732139 is an equidigital number, since it uses as much as digits as its factorization.

44635732139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460162284.

The product of its digits is 1632960, while the sum is 47.

The spelling of 44635732139 in words is "forty-four billion, six hundred thirty-five million, seven hundred thirty-two thousand, one hundred thirty-nine".