345518478828 has 36 divisors (see below), whose sum is σ = 879677354920. Its totient is φ = 114344243136.

The previous prime is 345518478797. The next prime is 345518478853. The reversal of 345518478828 is 828874815543.

345518478828 is a `hidden beast` number, since 3 + 4 + 551 + 8 + 4 + 78 + 8 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34519225 + ... + 34529232.

Almost surely, 2^345518478828 is an apocalyptic number.

It is an amenable number.

345518478828 is an abundant number, since it is smaller than the sum of its proper divisors (534158876092).

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

345518478828 is a wasteful number, since it uses less digits than its factorization.

345518478828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69048606 (or 69048601 counting only the distinct ones).

The product of its digits is 68812800, while the sum is 63.

The spelling of 345518478828 in words is "three hundred forty-five billion, five hundred eighteen million, four hundred seventy-eight thousand, eight hundred twenty-eight".