11749259236 has 81 divisors (see below), whose sum is σ = 24537289833. Its totient is φ = 4916751840.

The previous prime is 11749259231. The next prime is 11749259237. The reversal of 11749259236 is 63295294711.

The square root of 11749259236 is 108394.

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

It can be written as a sum of positive squares in only one way, i.e., 1738056100 + 10011203136 = 41690^2 + 100056^2 .

It is a Duffinian number.

Its product of digits (816480) is a multiple of the sum of its prime divisors (405).

It is a self number, because there is not a number n which added to its sum of digits gives 11749259236.

It is not an unprimeable number, because it can be changed into a prime (11749259231) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 31000495 + ... + 31000873.

Almost surely, 2^11749259236 is an apocalyptic number.

11749259236 is the 108394-th square number.

It is an amenable number.

11749259236 is an abundant number, since it is smaller than the sum of its proper divisors (12788030597).

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

11749259236 is a wasteful number, since it uses less digits than its factorization.

11749259236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 405 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

Multiplying 11749259236 by its sum of digits (49), we get a square (575713702564 = 758758²).

The spelling of 11749259236 in words is "eleven billion, seven hundred forty-nine million, two hundred fifty-nine thousand, two hundred thirty-six".