11811432404 has 6 divisors (see below), whose sum is σ = 20670006714. Its totient is φ = 5905716200.

The previous prime is 11811432401. The next prime is 11811432421. The reversal of 11811432404 is 40423411811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11405812804 + 405619600 = 106798^2 + 20140^2 .

It is a super-2 number, since 2×11811432404² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11811432401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1476429047 + ... + 1476429054.

It is an arithmetic number, because the mean of its divisors is an integer number (3445001119).

Almost surely, 2^11811432404 is an apocalyptic number.

It is an amenable number.

11811432404 is a deficient number, since it is larger than the sum of its proper divisors (8858574310).

11811432404 is a wasteful number, since it uses less digits than its factorization.

11811432404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952858105 (or 2952858103 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 11811432404 in words is "eleven billion, eight hundred eleven million, four hundred thirty-two thousand, four hundred four".