18671303346 has 16 divisors (see below), whose sum is σ = 37792518624. Its totient is φ = 6148782464.

The previous prime is 18671303341. The next prime is 18671303353. The reversal of 18671303346 is 64330317681.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18671303298 and 18671303307.

It is not an unprimeable number, because it can be changed into a prime (18671303341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18745791 + ... + 18746786.

It is an arithmetic number, because the mean of its divisors is an integer number (2362032414).

Almost surely, 2^18671303346 is an apocalyptic number.

18671303346 is an abundant number, since it is smaller than the sum of its proper divisors (19121215278).

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

18671303346 is a wasteful number, since it uses less digits than its factorization.

18671303346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37492665.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 18671303346 in words is "eighteen billion, six hundred seventy-one million, three hundred three thousand, three hundred forty-six".