11385136250 has 40 divisors (see below), whose sum is σ = 21860892900. Its totient is φ = 4442960000.

The previous prime is 11385136211. The next prime is 11385136307. The reversal of 11385136250 is 5263158311.

It can be written as a sum of positive squares in 10 ways, for example, as 3577116481 + 7808019769 = 59809^2 + 88363^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11385136250.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 59825 + ... + 162324.

Almost surely, 2^11385136250 is an apocalyptic number.

11385136250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11385136250 is a deficient number, since it is larger than the sum of its proper divisors (10475756650).

11385136250 is an equidigital number, since it uses as much as digits as its factorization.

11385136250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222212 (or 222197 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 11385136250 in words is "eleven billion, three hundred eighty-five million, one hundred thirty-six thousand, two hundred fifty".