18307378824396 has 12 divisors (see below), whose sum is σ = 42717217256952. Its totient is φ = 6102459608128.

The previous prime is 18307378824353. The next prime is 18307378824421. The reversal of 18307378824396 is 69342887370381.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 18307378824396.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762807451005 + ... + 762807451028.

It is an arithmetic number, because the mean of its divisors is an integer number (3559768104746).

Almost surely, 2^{18307378824396} is an apocalyptic number.

It is an amenable number.

18307378824396 is an abundant number, since it is smaller than the sum of its proper divisors (24409838432556).

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

18307378824396 is a wasteful number, since it uses less digits than its factorization.

18307378824396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525614902040 (or 1525614902038 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 69.

The spelling of 18307378824396 in words is "eighteen trillion, three hundred seven billion, three hundred seventy-eight million, eight hundred twenty-four thousand, three hundred ninety-six".