18195153400 has 24 divisors (see below), whose sum is σ = 42303732120. Its totient is φ = 7278061280.

The previous prime is 18195153391. The next prime is 18195153413. The reversal of 18195153400 is 435159181.

It is a self number, because there is not a number n which added to its sum of digits gives 18195153400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45487684 + ... + 45488083.

It is an arithmetic number, because the mean of its divisors is an integer number (1762655505).

Almost surely, 2^18195153400 is an apocalyptic number.

18195153400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18195153400 is an abundant number, since it is smaller than the sum of its proper divisors (24108578720).

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

18195153400 is a wasteful number, since it uses less digits than its factorization.

18195153400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90975783 (or 90975774 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 18195153400 in words is "eighteen billion, one hundred ninety-five million, one hundred fifty-three thousand, four hundred".