345702720400578 has 24 divisors (see below), whose sum is σ = 749023215610800. Its totient is φ = 115234139403864.

The previous prime is 345702720400481. The next prime is 345702720400589. The reversal of 345702720400578 is 875004027207543.

It is a happy number.

345702720400578 is a `hidden beast` number, since 3 + 4 + 5 + 7 + 0 + 2 + 7 + 20 + 40 + 0 + 578 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14450013 + ... + 30003471.

It is an arithmetic number, because the mean of its divisors is an integer number (31209300650450).

Almost surely, 2^{345702720400578} is an apocalyptic number.

345702720400578 is an abundant number, since it is smaller than the sum of its proper divisors (403320495210222).

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

345702720400578 is a wasteful number, since it uses less digits than its factorization.

345702720400578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16788286 (or 16788283 counting only the distinct ones).

The product of its (nonzero) digits is 13171200, while the sum is 54.

The spelling of 345702720400578 in words is "three hundred forty-five trillion, seven hundred two billion, seven hundred twenty million, four hundred thousand, five hundred seventy-eight".