4342991831 has 4 divisors (see below), whose sum is σ = 4492750200. Its totient is φ = 4193233464.

The previous prime is 4342991803. The next prime is 4342991837. The reversal of 4342991831 is 1381992434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4342991831 - 2³⁰ = 3269250007 is a prime.

It is a super-2 number, since 2×4342991831² = 37723156088265465122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4342991837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74879141 + ... + 74879198.

It is an arithmetic number, because the mean of its divisors is an integer number (1123187550).

Almost surely, 2^4342991831 is an apocalyptic number.

4342991831 is a deficient number, since it is larger than the sum of its proper divisors (149758369).

4342991831 is a wasteful number, since it uses less digits than its factorization.

4342991831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149758368.

The product of its digits is 186624, while the sum is 44.

The square root of 4342991831 is about 65901.3795834351. The cubic root of 4342991831 is about 1631.5347847336.

The spelling of 4342991831 in words is "four billion, three hundred forty-two million, nine hundred ninety-one thousand, eight hundred thirty-one".