44431331478 has 32 divisors (see below), whose sum is σ = 94134864096. Its totient is φ = 13932576768.

The previous prime is 44431331449. The next prime is 44431331479. The reversal of 44431331478 is 87413313444.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44431331479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112450 + ... + 318602.

It is an arithmetic number, because the mean of its divisors is an integer number (2941714503).

Almost surely, 2^44431331478 is an apocalyptic number.

44431331478 is an abundant number, since it is smaller than the sum of its proper divisors (49703532618).

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

44431331478 is a wasteful number, since it uses less digits than its factorization.

44431331478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208288.

The product of its digits is 387072, while the sum is 42.

The spelling of 44431331478 in words is "forty-four billion, four hundred thirty-one million, three hundred thirty-one thousand, four hundred seventy-eight".