11723524640 has 24 divisors (see below), whose sum is σ = 27696827340. Its totient is φ = 4689409792.

The previous prime is 11723524639. The next prime is 11723524651. The reversal of 11723524640 is 4642532711.

It can be written as a sum of positive squares in 2 ways, for example, as 11196179344 + 527345296 = 105812^2 + 22964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11723524640.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36635855 + ... + 36636174.

Almost surely, 2^11723524640 is an apocalyptic number.

11723524640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11723524640 is an abundant number, since it is smaller than the sum of its proper divisors (15973302700).

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

11723524640 is an equidigital number, since it uses as much as digits as its factorization.

11723524640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73272044 (or 73272036 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 11723524640 in words is "eleven billion, seven hundred twenty-three million, five hundred twenty-four thousand, six hundred forty".