11431634445 has 96 divisors (see below), whose sum is σ = 26157530880. Its totient is φ = 4471326720.

The previous prime is 11431634443. The next prime is 11431634483. The reversal of 11431634445 is 54443613411.

11431634445 is a `hidden beast` number, since 1 + 14 + 3 + 1 + 634 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 11431634445 - 2¹ = 11431634443 is a prime.

It is a super-2 number, since 2×11431634445² (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 (11431634443) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38130 + ... + 155939.

It is an arithmetic number, because the mean of its divisors is an integer number (272474280).

Almost surely, 2^11431634445 is an apocalyptic number.

11431634445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11431634445 is an abundant number, since it is smaller than the sum of its proper divisors (14725896435).

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

11431634445 is a wasteful number, since it uses less digits than its factorization.

11431634445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194115 (or 194112 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 11431634445 in words is "eleven billion, four hundred thirty-one million, six hundred thirty-four thousand, four hundred forty-five".