2491842839 has 8 divisors (see below), whose sum is σ = 2605835232. Its totient is φ = 2378321440.

The previous prime is 2491842833. The next prime is 2491842841. The reversal of 2491842839 is 9382481942.

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

It is not a de Polignac number, because 2491842839 - 2⁸ = 2491842583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491842833) 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, 106904 + ... + 128109.

It is an arithmetic number, because the mean of its divisors is an integer number (325729404).

Almost surely, 2^2491842839 is an apocalyptic number.

2491842839 is a deficient number, since it is larger than the sum of its proper divisors (113992393).

2491842839 is a wasteful number, since it uses less digits than its factorization.

2491842839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235497.

The product of its digits is 995328, while the sum is 50.

The square root of 2491842839 is about 49918.3617419482. The cubic root of 2491842839 is about 1355.7310704762.

The spelling of 2491842839 in words is "two billion, four hundred ninety-one million, eight hundred forty-two thousand, eight hundred thirty-nine".