18195570192 has 20 divisors (see below), whose sum is σ = 47005223120. Its totient is φ = 6065190048.

The previous prime is 18195570157. The next prime is 18195570269. The reversal of 18195570192 is 29107559181.

It is a super-2 number, since 2×18195570192² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 379074379 = 18195570192 / (1 + 8 + 1 + 9 + 5 + 5 + 7 + 0 + 1 + 9 + 2).

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, 189537142 + ... + 189537237.

It is an arithmetic number, because the mean of its divisors is an integer number (2350261156).

Almost surely, 2^18195570192 is an apocalyptic number.

18195570192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18195570192 is an abundant number, since it is smaller than the sum of its proper divisors (28809652928).

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

18195570192 is a wasteful number, since it uses less digits than its factorization.

18195570192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379074390 (or 379074384 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 18195570192 in words is "eighteen billion, one hundred ninety-five million, five hundred seventy thousand, one hundred ninety-two".