345896980278 has 16 divisors (see below), whose sum is σ = 691993423920. Its totient is φ = 115265749536.

The previous prime is 345896980267. The next prime is 345896980283. The reversal of 345896980278 is 872089698543.

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, 8288425 + ... + 8330052.

It is an arithmetic number, because the mean of its divisors is an integer number (43249588995).

Almost surely, 2^345896980278 is an apocalyptic number.

345896980278 is an abundant number, since it is smaller than the sum of its proper divisors (346096443642).

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

345896980278 is a wasteful number, since it uses less digits than its factorization.

345896980278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16621951.

The product of its (nonzero) digits is 209018880, while the sum is 69.

The spelling of 345896980278 in words is "three hundred forty-five billion, eight hundred ninety-six million, nine hundred eighty thousand, two hundred seventy-eight".