11739722500 has 135 divisors (see below), whose sum is σ = 28362418777. Its totient is φ = 4247320000.

The previous prime is 11739722497. The next prime is 11739722503. The reversal of 11739722500 is 522793711.

The square root of 11739722500 is 108350.

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

It is an interprime number because it is at equal distance from previous prime (11739722497) and next prime (11739722503).

It can be written as a sum of positive squares in 7 ways, for example, as 2008294596 + 9731427904 = 44814^2 + 98648^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11739722500.

It is not an unprimeable number, because it can be changed into a prime (11739722503) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 59592402 + ... + 59592598.

Almost surely, 2^11739722500 is an apocalyptic number.

11739722500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11739722500 is the 108350-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11739722500

11739722500 is an abundant number, since it is smaller than the sum of its proper divisors (16622696277).

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

11739722500 is an equidigital number, since it uses as much as digits as its factorization.

11739722500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 11739722500 in words is "eleven billion, seven hundred thirty-nine million, seven hundred twenty-two thousand, five hundred".