345217026178 has 8 divisors (see below), whose sum is σ = 518010419340. Its totient is φ = 172546886400.

The previous prime is 345217026149. The next prime is 345217026197. The reversal of 345217026178 is 871620712543.

It can be written as a sum of positive squares in 2 ways, for example, as 313883424009 + 31333602169 = 560253^2 + 177013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30806343 + ... + 30817546.

Almost surely, 2^345217026178 is an apocalyptic number.

345217026178 is a deficient number, since it is larger than the sum of its proper divisors (172793393162).

345217026178 is a wasteful number, since it uses less digits than its factorization.

345217026178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61626692.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 345217026178 in words is "three hundred forty-five billion, two hundred seventeen million, twenty-six thousand, one hundred seventy-eight".