345609460278 has 12 divisors (see below), whose sum is σ = 748820497308. Its totient is φ = 115203153420.

The previous prime is 345609460253. The next prime is 345609460309. The reversal of 345609460278 is 872064906543.

345609460278 is a `hidden beast` number, since 3 + 4 + 5 + 609 + 4 + 6 + 0 + 27 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9600262768 + ... + 9600262803.

It is an arithmetic number, because the mean of its divisors is an integer number (62401708109).

Almost surely, 2^345609460278 is an apocalyptic number.

345609460278 is an abundant number, since it is smaller than the sum of its proper divisors (403211037030).

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

345609460278 is a wasteful number, since it uses less digits than its factorization.

345609460278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200525579 (or 19200525576 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 345609460278 in words is "three hundred forty-five billion, six hundred nine million, four hundred sixty thousand, two hundred seventy-eight".