345178625478 has 64 divisors (see below), whose sum is σ = 708277893120. Its totient is φ = 112096164992.

The previous prime is 345178625437. The next prime is 345178625509. The reversal of 345178625478 is 874526871543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91630351 + ... + 91634117.

It is an arithmetic number, because the mean of its divisors is an integer number (11066842080).

Almost surely, 2^345178625478 is an apocalyptic number.

345178625478 is an abundant number, since it is smaller than the sum of its proper divisors (363099267642).

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

345178625478 is a wasteful number, since it uses less digits than its factorization.

345178625478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221.

The product of its digits is 45158400, while the sum is 60.

The spelling of 345178625478 in words is "three hundred forty-five billion, one hundred seventy-eight million, six hundred twenty-five thousand, four hundred seventy-eight".