11724262720 has 56 divisors (see below), whose sum is σ = 28122289704. Its totient is φ = 4655456256.

The previous prime is 11724262663. The next prime is 11724262729. The reversal of 11724262720 is 2726242711.

It can be written as a sum of positive squares in 4 ways, for example, as 5274245376 + 6450017344 = 72624^2 + 80312^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11724262729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89877 + ... + 177556.

Almost surely, 2^11724262720 is an apocalyptic number.

11724262720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11724262720 is an abundant number, since it is smaller than the sum of its proper divisors (16398026984).

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

11724262720 is a wasteful number, since it uses less digits than its factorization.

11724262720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267587 (or 267577 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 11724262720 in words is "eleven billion, seven hundred twenty-four million, two hundred sixty-two thousand, seven hundred twenty".