4640631091 has 8 divisors (see below), whose sum is σ = 4677251040. Its totient is φ = 4604143488.

The previous prime is 4640631089. The next prime is 4640631101. The reversal of 4640631091 is 1901360464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4640631091 - 2¹ = 4640631089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4640631031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37915 + ... + 103531.

It is an arithmetic number, because the mean of its divisors is an integer number (584656380).

Almost surely, 2^4640631091 is an apocalyptic number.

4640631091 is a deficient number, since it is larger than the sum of its proper divisors (36619949).

4640631091 is a wasteful number, since it uses less digits than its factorization.

4640631091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66173.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 4640631091 is about 68122.1776736475. The cubic root of 4640631091 is about 1667.9857976917.

The spelling of 4640631091 in words is "four billion, six hundred forty million, six hundred thirty-one thousand, ninety-one".