18948280190 has 16 divisors (see below), whose sum is σ = 38979319392. Its totient is φ = 6496553184.

The previous prime is 18948280181. The next prime is 18948280207. The reversal of 18948280190 is 9108284981.

It is a happy number.

It is a super-2 number, since 2×18948280190² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135344789 + ... + 135344928.

It is an arithmetic number, because the mean of its divisors is an integer number (2436207462).

Almost surely, 2^18948280190 is an apocalyptic number.

18948280190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18948280190 is an abundant number, since it is smaller than the sum of its proper divisors (20031039202).

18948280190 is a wasteful number, since it uses less digits than its factorization.

18948280190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270689731.

The product of its (nonzero) digits is 331776, while the sum is 50.

The spelling of 18948280190 in words is "eighteen billion, nine hundred forty-eight million, two hundred eighty thousand, one hundred ninety".