5405310891 has 36 divisors (see below), whose sum is σ = 8361267096. Its totient is φ = 3362673600.

The previous prime is 5405310863. The next prime is 5405310907. The reversal of 5405310891 is 1980135045.

5405310891 is a `hidden beast` number, since 5 + 40 + 531 + 0 + 89 + 1 = 666.

It is not a de Polignac number, because 5405310891 - 2²³ = 5396922283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5405315891) 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 35 ways as a sum of consecutive naturals, for example, 181356 + ... + 209046.

Almost surely, 2^5405310891 is an apocalyptic number.

5405310891 is a deficient number, since it is larger than the sum of its proper divisors (2955956205).

5405310891 is a wasteful number, since it uses less digits than its factorization.

5405310891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27784 (or 27758 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 5405310891 is about 73520.8194391221. The cubic root of 5405310891 is about 1754.9856077910.

The spelling of 5405310891 in words is "five billion, four hundred five million, three hundred ten thousand, eight hundred ninety-one".