345404840187 has 16 divisors (see below), whose sum is σ = 515985610752. Its totient is φ = 203678529120.

The previous prime is 345404840173. The next prime is 345404840197. The reversal of 345404840187 is 781048404543.

It is not a de Polignac number, because 345404840187 - 2⁷ = 345404840059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345404840197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141442203 + ... + 141444644.

It is an arithmetic number, because the mean of its divisors is an integer number (32249100672).

Almost surely, 2^345404840187 is an apocalyptic number.

345404840187 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

345404840187 is a deficient number, since it is larger than the sum of its proper divisors (170580770565).

345404840187 is a wasteful number, since it uses less digits than its factorization.

345404840187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282886898.

The product of its (nonzero) digits is 1720320, while the sum is 48.

The spelling of 345404840187 in words is "three hundred forty-five billion, four hundred four million, eight hundred forty thousand, one hundred eighty-seven".