2431172387 has 6 divisors (see below), whose sum is σ = 2828098548. Its totient is φ = 2083862004.

The previous prime is 2431172377. The next prime is 2431172389. The reversal of 2431172387 is 7832711342.

2431172387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2431172387 - 2¹⁶ = 2431106851 is a prime.

It is a super-2 number, since 2×2431172387² = 11821198350622555538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2431172387.

It is not an unprimeable number, because it can be changed into a prime (2431172389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24807833 + ... + 24807930.

It is an arithmetic number, because the mean of its divisors is an integer number (471349758).

Almost surely, 2^2431172387 is an apocalyptic number.

2431172387 is a deficient number, since it is larger than the sum of its proper divisors (396926161).

2431172387 is an equidigital number, since it uses as much as digits as its factorization.

2431172387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49615777 (or 49615770 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 2431172387 is about 49306.9202749472. The cubic root of 2431172387 is about 1344.6376007551.

The spelling of 2431172387 in words is "two billion, four hundred thirty-one million, one hundred seventy-two thousand, three hundred eighty-seven".