11399145757 has 4 divisors (see below), whose sum is σ = 11399603040. Its totient is φ = 11398688476.

The previous prime is 11399145743. The next prime is 11399145781. The reversal of 11399145757 is 75754199311.

It is a happy number.

11399145757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75754199311 = 7 ⋅10822028473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11399145757 is a prime.

It is a super-2 number, since 2×11399145757² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11399145707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188953 + ... + 241870.

It is an arithmetic number, because the mean of its divisors is an integer number (2849900760).

Almost surely, 2^11399145757 is an apocalyptic number.

It is an amenable number.

11399145757 is a deficient number, since it is larger than the sum of its proper divisors (457283).

11399145757 is an equidigital number, since it uses as much as digits as its factorization.

11399145757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457282.

The product of its digits is 1190700, while the sum is 52.

The spelling of 11399145757 in words is "eleven billion, three hundred ninety-nine million, one hundred forty-five thousand, seven hundred fifty-seven".