44138577858 has 16 divisors (see below), whose sum is σ = 88281703776. Its totient is φ = 14712101280.

The previous prime is 44138577841. The next prime is 44138577887. The reversal of 44138577858 is 85877583144.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56116 + ... + 302367.

It is an arithmetic number, because the mean of its divisors is an integer number (5517606486).

Almost surely, 2^44138577858 is an apocalyptic number.

44138577858 is an abundant number, since it is smaller than the sum of its proper divisors (44143125918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44138577858 is a wasteful number, since it uses less digits than its factorization.

44138577858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379009.

The product of its digits is 30105600, while the sum is 60.

The spelling of 44138577858 in words is "forty-four billion, one hundred thirty-eight million, five hundred seventy-seven thousand, eight hundred fifty-eight".