11547730157 has 4 divisors (see below), whose sum is σ = 11686859520. Its totient is φ = 11408600796.

The previous prime is 11547730141. The next prime is 11547730163. The reversal of 11547730157 is 75103774511.

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.

It is a cyclic number.

It is not a de Polignac number, because 11547730157 - 2⁴ = 11547730141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11547730057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69564557 + ... + 69564722.

It is an arithmetic number, because the mean of its divisors is an integer number (2921714880).

Almost surely, 2^11547730157 is an apocalyptic number.

It is an amenable number.

11547730157 is a deficient number, since it is larger than the sum of its proper divisors (139129363).

11547730157 is an equidigital number, since it uses as much as digits as its factorization.

11547730157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139129362.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 11547730157 in words is "eleven billion, five hundred forty-seven million, seven hundred thirty thousand, one hundred fifty-seven".