345442861028 has 24 divisors (see below), whose sum is σ = 640246074720. Its totient is φ = 162626952960.

The previous prime is 345442861003. The next prime is 345442861031. The reversal of 345442861028 is 820168244543.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13930253 + ... + 13955028.

It is an arithmetic number, because the mean of its divisors is an integer number (26676919780).

Almost surely, 2^345442861028 is an apocalyptic number.

345442861028 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

345442861028 is a deficient number, since it is larger than the sum of its proper divisors (294803213692).

345442861028 is a wasteful number, since it uses less digits than its factorization.

345442861028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27885467 (or 27885465 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 47.

The spelling of 345442861028 in words is "three hundred forty-five billion, four hundred forty-two million, eight hundred sixty-one thousand, twenty-eight".