1813825696 has 24 divisors (see below), whose sum is σ = 3611098260. Its totient is φ = 896721408.

The previous prime is 1813825687. The next prime is 1813825697. The reversal of 1813825696 is 6965283181.

It can be written as a sum of positive squares in 2 ways, for example, as 1811694096 + 2131600 = 42564^2 + 1460^2 .

It is not an unprimeable number, because it can be changed into a prime (1813825697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315591 + ... + 321286.

Almost surely, 2^1813825696 is an apocalyptic number.

1813825696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1813825696 is a deficient number, since it is larger than the sum of its proper divisors (1797272564).

1813825696 is an equidigital number, since it uses as much as digits as its factorization.

1813825696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636976 (or 636968 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The square root of 1813825696 is about 42589.0325788224. The cubic root of 1813825696 is about 1219.5469284222.

It can be divided in two parts, 18138 and 25696, that added together give a palindrome (43834).

The spelling of 1813825696 in words is "one billion, eight hundred thirteen million, eight hundred twenty-five thousand, six hundred ninety-six".