1809675264 has 88 divisors (see below), whose sum is σ = 4891969728. Its totient is φ = 594657280.

The previous prime is 1809675247. The next prime is 1809675281. The reversal of 1809675264 is 4625769081.

It is an interprime number because it is at equal distance from previous prime (1809675247) and next prime (1809675281).

It is a super-2 number, since 2×1809675264² = 6549849122266939392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 213964 + ... + 222260.

Almost surely, 2^1809675264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1809675264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2445984864).

1809675264 is an abundant number, since it is smaller than the sum of its proper divisors (3082294464).

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

1809675264 is an equidigital number, since it uses as much as digits as its factorization.

1809675264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391 (or 8373 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 1809675264 is about 42540.2781373136. The cubic root of 1809675264 is about 1218.6160208486.

The spelling of 1809675264 in words is "one billion, eight hundred nine million, six hundred seventy-five thousand, two hundred sixty-four".