44981396887 has 16 divisors (see below), whose sum is σ = 52125751552. Its totient is φ = 38016941760.

The previous prime is 44981396839. The next prime is 44981396899. The reversal of 44981396887 is 78869318944.

It is a de Polignac number, because none of the positive numbers 2^k-44981396887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44981396827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2293312 + ... + 2312842.

It is an arithmetic number, because the mean of its divisors is an integer number (3257859472).

Almost surely, 2^44981396887 is an apocalyptic number.

44981396887 is a deficient number, since it is larger than the sum of its proper divisors (7144354665).

44981396887 is a wasteful number, since it uses less digits than its factorization.

44981396887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24118.

The product of its digits is 83607552, while the sum is 67.

The spelling of 44981396887 in words is "forty-four billion, nine hundred eighty-one million, three hundred ninety-six thousand, eight hundred eighty-seven".