18525851092 has 24 divisors (see below), whose sum is σ = 37059235136. Its totient is φ = 7938036288.

The previous prime is 18525851089. The next prime is 18525851119. The reversal of 18525851092 is 29015852581.

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, 78463 + ... + 207865.

Almost surely, 2^18525851092 is an apocalyptic number.

It is an amenable number.

18525851092 is an abundant number, since it is smaller than the sum of its proper divisors (18533384044).

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

18525851092 is a wasteful number, since it uses less digits than its factorization.

18525851092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134527 (or 134525 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 46.

The spelling of 18525851092 in words is "eighteen billion, five hundred twenty-five million, eight hundred fifty-one thousand, ninety-two".