349981947792 has 60 divisors (see below), whose sum is σ = 981508369920. Its totient is φ = 116417075904.

The previous prime is 349981947779. The next prime is 349981947793. The reversal of 349981947792 is 297749189943.

349981947792 is a `hidden beast` number, since 3 + 499 + 8 + 1 + 9 + 47 + 7 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 349981947792.

It is not an unprimeable number, because it can be changed into a prime (349981947793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2468008 + ... + 2605959.

It is an arithmetic number, because the mean of its divisors is an integer number (16358472832).

Almost surely, 2^349981947792 is an apocalyptic number.

It is an amenable number.

349981947792 is an abundant number, since it is smaller than the sum of its proper divisors (631526422128).

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

349981947792 is a wasteful number, since it uses less digits than its factorization.

349981947792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074460 (or 5074451 counting only the distinct ones).

The product of its digits is 246903552, while the sum is 72.

The spelling of 349981947792 in words is "three hundred forty-nine billion, nine hundred eighty-one million, nine hundred forty-seven thousand, seven hundred ninety-two".