44378570139 has 4 divisors (see below), whose sum is σ = 59171426856. Its totient is φ = 29585713424.

The previous prime is 44378570129. The next prime is 44378570179. The reversal of 44378570139 is 93107587344.

It is a happy number.

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 44378570139 - 2⁵ = 44378570107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44378570091 and 44378570100.

It is not an unprimeable number, because it can be changed into a prime (44378570129) 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, 7396428354 + ... + 7396428359.

It is an arithmetic number, because the mean of its divisors is an integer number (14792856714).

Almost surely, 2^44378570139 is an apocalyptic number.

44378570139 is a deficient number, since it is larger than the sum of its proper divisors (14792856717).

44378570139 is a wasteful number, since it uses less digits than its factorization.

44378570139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14792856716.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 44378570139 in words is "forty-four billion, three hundred seventy-eight million, five hundred seventy thousand, one hundred thirty-nine".