1805153764 has 12 divisors (see below), whose sum is σ = 3170677888. Its totient is φ = 899245800.

The previous prime is 1805153759. The next prime is 1805153773. The reversal of 1805153764 is 4673515081.

It is a happy number.

It is a super-2 number, since 2×1805153764² = 6517160223366735392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831552 + ... + 833719.

Almost surely, 2^1805153764 is an apocalyptic number.

It is an amenable number.

1805153764 is a deficient number, since it is larger than the sum of its proper divisors (1365524124).

1805153764 is a wasteful number, since it uses less digits than its factorization.

1805153764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665546 (or 1665544 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 1805153764 is about 42487.1011484662. The cubic root of 1805153764 is about 1217.6002644596.

The spelling of 1805153764 in words is "one billion, eight hundred five million, one hundred fifty-three thousand, seven hundred sixty-four".