11926387264 has 189 divisors, whose sum is σ = 28017456411. Its totient is φ = 5032304640.

The previous prime is 11926387261. The next prime is 11926387283. The reversal of 11926387264 is 46278362911.

It is a happy number.

The square root of 11926387264 is 109208.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1506060864 + 10420326400 = 38808^2 + 102080^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11926387261) 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, 163375132 + ... + 163375204.

Almost surely, 2^11926387264 is an apocalyptic number.

11926387264 is the 109208-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11926387264

11926387264 is an abundant number, since it is smaller than the sum of its proper divisors (16091069147).

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

11926387264 is an equidigital number, since it uses as much as digits as its factorization.

11926387264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 103 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

Multiplying 11926387264 by its sum of digits (49), we get a square (584392975936 = 764456²).

The spelling of 11926387264 in words is "eleven billion, nine hundred twenty-six million, three hundred eighty-seven thousand, two hundred sixty-four".