18525087270 has 96 divisors (see below), whose sum is σ = 49035767040. Its totient is φ = 4850925120.

The previous prime is 18525087263. The next prime is 18525087293. The reversal of 18525087270 is 7278052581.

18525087270 is a `hidden beast` number, since 1 + 8 + 5 + 2 + 508 + 72 + 70 = 666.

It is a super-2 number, since 2×18525087270² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7682365 + ... + 7684775.

It is an arithmetic number, because the mean of its divisors is an integer number (510789240).

Almost surely, 2^18525087270 is an apocalyptic number.

18525087270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18525087270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24517883520).

18525087270 is an abundant number, since it is smaller than the sum of its proper divisors (30510679770).

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

18525087270 is a wasteful number, since it uses less digits than its factorization.

18525087270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The spelling of 18525087270 in words is "eighteen billion, five hundred twenty-five million, eighty-seven thousand, two hundred seventy".