11032638399 has 8 divisors (see below), whose sum is σ = 16344649520. Its totient is φ = 7355092248.

The previous prime is 11032638377. The next prime is 11032638451. The reversal of 11032638399 is 99383623011.

11032638399 is a `hidden beast` number, since 1 + 1 + 0 + 3 + 2 + 638 + 3 + 9 + 9 = 666.

It is not a de Polignac number, because 11032638399 - 2²⁰ = 11031589823 is a prime.

It is a super-2 number, since 2×11032638399² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11032638319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204308092 + ... + 204308145.

It is an arithmetic number, because the mean of its divisors is an integer number (2043081190).

Almost surely, 2^11032638399 is an apocalyptic number.

11032638399 is a deficient number, since it is larger than the sum of its proper divisors (5312011121).

11032638399 is an equidigital number, since it uses as much as digits as its factorization.

11032638399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408616246 (or 408616240 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 11032638399 in words is "eleven billion, thirty-two million, six hundred thirty-eight thousand, three hundred ninety-nine".