54431092881 has 96 divisors (see below), whose sum is σ = 95511177216. Its totient is φ = 30608928000.

The previous prime is 54431092879. The next prime is 54431092883. The reversal of 54431092881 is 18829013445.

54431092881 is a `hidden beast` number, since 5 + 443 + 109 + 28 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (54431092879) and next prime (54431092883).

It is not a de Polignac number, because 54431092881 - 2¹ = 54431092879 is a prime.

It is a super-2 number, since 2×54431092881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54431092883) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3217876 + ... + 3234746.

It is an arithmetic number, because the mean of its divisors is an integer number (994908096).

Almost surely, 2^54431092881 is an apocalyptic number.

54431092881 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54431092881 is a deficient number, since it is larger than the sum of its proper divisors (41080084335).

54431092881 is a wasteful number, since it uses less digits than its factorization.

54431092881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16985 (or 16973 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 54431092881 in words is "fifty-four billion, four hundred thirty-one million, ninety-two thousand, eight hundred eighty-one".