18920410345 has 16 divisors (see below), whose sum is σ = 22879640448. Its totient is φ = 15019655040.

The previous prime is 18920410337. The next prime is 18920410357. The reversal of 18920410345 is 54301402981.

It is not a de Polignac number, because 18920410345 - 2³ = 18920410337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2401102 + ... + 2408968.

It is an arithmetic number, because the mean of its divisors is an integer number (1429977528).

Almost surely, 2^18920410345 is an apocalyptic number.

It is an amenable number.

18920410345 is a deficient number, since it is larger than the sum of its proper divisors (3959230103).

18920410345 is a wasteful number, since it uses less digits than its factorization.

18920410345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11520.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 18920410345 in words is "eighteen billion, nine hundred twenty million, four hundred ten thousand, three hundred forty-five".