1805783440232 has 8 divisors (see below), whose sum is σ = 3385843950450. Its totient is φ = 902891720112.

The previous prime is 1805783440231. The next prime is 1805783440259. The reversal of 1805783440232 is 2320443875081.

It can be written as a sum of positive squares in only one way, i.e., 1745849545636 + 59933894596 = 1321306^2 + 244814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1805783440232² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1805783440231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112861465007 + ... + 112861465022.

Almost surely, 2^{1805783440232} is an apocalyptic number.

It is an amenable number.

1805783440232 is a deficient number, since it is larger than the sum of its proper divisors (1580060510218).

1805783440232 is a wasteful number, since it uses less digits than its factorization.

1805783440232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225722930035 (or 225722930031 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 1805783440232 in words is "one trillion, eight hundred five billion, seven hundred eighty-three million, four hundred forty thousand, two hundred thirty-two".