349897789788 has 24 divisors (see below), whose sum is σ = 820658379408. Its totient is φ = 116028281856.

The previous prime is 349897789771. The next prime is 349897789799. The reversal of 349897789788 is 887987798943.

It is a happy number.

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, 75536931 + ... + 75541562.

It is an arithmetic number, because the mean of its divisors is an integer number (34194099142).

Almost surely, 2^349897789788 is an apocalyptic number.

It is an amenable number.

349897789788 is an abundant number, since it is smaller than the sum of its proper divisors (470760589620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349897789788 is a wasteful number, since it uses less digits than its factorization.

349897789788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151078693 (or 151078691 counting only the distinct ones).

The product of its digits is 12290310144, while the sum is 87.

The spelling of 349897789788 in words is "three hundred forty-nine billion, eight hundred ninety-seven million, seven hundred eighty-nine thousand, seven hundred eighty-eight".