18992005275 has 24 divisors (see below), whose sum is σ = 33052755520. Its totient is φ = 9595959840.

The previous prime is 18992005271. The next prime is 18992005283. The reversal of 18992005275 is 57250029981.

It is not a de Polignac number, because 18992005275 - 2² = 18992005271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18992005271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6662437 + ... + 6665286.

Almost surely, 2^18992005275 is an apocalyptic number.

18992005275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18992005275 is a deficient number, since it is larger than the sum of its proper divisors (14060750245).

18992005275 is a wasteful number, since it uses less digits than its factorization.

18992005275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13327755 (or 13327750 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 18992005275 in words is "eighteen billion, nine hundred ninety-two million, five thousand, two hundred seventy-five".