18948227696 has 10 divisors (see below), whose sum is σ = 36712191192. Its totient is φ = 9474113840.

The previous prime is 18948227687. The next prime is 18948227789. The reversal of 18948227696 is 69672284981.

It is a super-2 number, since 2×18948227696² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592132100 + ... + 592132131.

Almost surely, 2^18948227696 is an apocalyptic number.

18948227696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18948227696 is a deficient number, since it is larger than the sum of its proper divisors (17763963496).

18948227696 is a wasteful number, since it uses less digits than its factorization.

18948227696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184264239 (or 1184264233 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 62.

The spelling of 18948227696 in words is "eighteen billion, nine hundred forty-eight million, two hundred twenty-seven thousand, six hundred ninety-six".