349494634831 has 4 divisors (see below), whose sum is σ = 349501337712. Its totient is φ = 349487931952.

The previous prime is 349494634807. The next prime is 349494634859. The reversal of 349494634831 is 138436494943.

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 349494634831 - 2¹⁹ = 349494110543 is a prime.

It is a super-2 number, since 2×349494634831² (a number of 24 digits) 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 (349494634231) 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, 3272611 + ... + 3377716.

It is an arithmetic number, because the mean of its divisors is an integer number (87375334428).

Almost surely, 2^349494634831 is an apocalyptic number.

349494634831 is a deficient number, since it is larger than the sum of its proper divisors (6702881).

349494634831 is an equidigital number, since it uses as much as digits as its factorization.

349494634831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702880.

The product of its digits is 26873856, while the sum is 58.

The spelling of 349494634831 in words is "three hundred forty-nine billion, four hundred ninety-four million, six hundred thirty-four thousand, eight hundred thirty-one".