349439688788 has 24 divisors (see below), whose sum is σ = 617906923200. Its totient is φ = 172898411328.

The previous prime is 349439688733. The next prime is 349439688809. The reversal of 349439688788 is 887886934943.

It is a super-2 number, since 2×349439688788² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50873 + ... + 837536.

It is an arithmetic number, because the mean of its divisors is an integer number (25746121800).

Almost surely, 2^349439688788 is an apocalyptic number.

It is an amenable number.

349439688788 is a deficient number, since it is larger than the sum of its proper divisors (268467234412).

349439688788 is a wasteful number, since it uses less digits than its factorization.

349439688788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889439 (or 889437 counting only the distinct ones).

The product of its digits is 2006581248, while the sum is 77.

The spelling of 349439688788 in words is "three hundred forty-nine billion, four hundred thirty-nine million, six hundred eighty-eight thousand, seven hundred eighty-eight".