11727590436 has 27 divisors (see below), whose sum is σ = 29646385041. Its totient is φ = 3908980224.

The previous prime is 11727590429. The next prime is 11727590449. The reversal of 11727590436 is 63409572711.

The square root of 11727590436 is 108294.

It is a perfect power (a square), and thus also a powerful number.

11727590436 is a `hidden beast` number, since 1 + 1 + 7 + 27 + 590 + 4 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10159430436 + 1568160000 = 100794^2 + 39600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11727590391 and 11727590400.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 640740 + ... + 658788.

Almost surely, 2^11727590436 is an apocalyptic number.

11727590436 is the 108294-th square number.

It is an amenable number.

11727590436 is an abundant number, since it is smaller than the sum of its proper divisors (17918794605).

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

11727590436 is an frugal number, since it uses more digits than its factorization.

11727590436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36108 (or 18054 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 11727590436 in words is "eleven billion, seven hundred twenty-seven million, five hundred ninety thousand, four hundred thirty-six".