1868853525 has 96 divisors (see below), whose sum is σ = 3985459200. Its totient is φ = 749817600.

The previous prime is 1868853521. The next prime is 1868853563. The reversal of 1868853525 is 5253588681.

It is not a de Polignac number, because 1868853525 - 2² = 1868853521 is a prime.

It is a super-2 number, since 2×1868853525² = 6985226995809851250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868853521) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 161896 + ... + 173054.

It is an arithmetic number, because the mean of its divisors is an integer number (41515200).

Almost surely, 2^1868853525 is an apocalyptic number.

1868853525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1868853525 is an abundant number, since it is smaller than the sum of its proper divisors (2116605675).

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

1868853525 is a wasteful number, since it uses less digits than its factorization.

1868853525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11219 (or 11214 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 51.

The square root of 1868853525 is about 43230.2385489601. The cubic root of 1868853525 is about 1231.7571389522.

The spelling of 1868853525 in words is "one billion, eight hundred sixty-eight million, eight hundred fifty-three thousand, five hundred twenty-five".