347642905122 has 54 divisors (see below), whose sum is σ = 778481362971. Its totient is φ = 112117857480.

The previous prime is 347642905063. The next prime is 347642905139. The reversal of 347642905122 is 221509246743.

347642905122 is a `hidden beast` number, since 3 + 4 + 7 + 6 + 42 + 90 + 512 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 173821452561 + 173821452561 = 416919^2 + 416919^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=416919.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 77544693 + ... + 77549175.

Almost surely, 2^347642905122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347642905122

347642905122 is an abundant number, since it is smaller than the sum of its proper divisors (430838457849).

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

347642905122 is an frugal number, since it uses more digits than its factorization.

347642905122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9036 (or 4519 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 347642905122 in words is "three hundred forty-seven billion, six hundred forty-two million, nine hundred five thousand, one hundred twenty-two".