11689945157 has 24 divisors (see below), whose sum is σ = 12956328000. Its totient is φ = 10539080640.

The previous prime is 11689945121. The next prime is 11689945193. The reversal of 11689945157 is 75154998611.

It is an interprime number because it is at equal distance from previous prime (11689945121) and next prime (11689945193).

It is not a de Polignac number, because 11689945157 - 2¹⁸ = 11689683013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11689945457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9847718 + ... + 9848904.

It is an arithmetic number, because the mean of its divisors is an integer number (539847000).

Almost surely, 2^11689945157 is an apocalyptic number.

It is an amenable number.

11689945157 is a deficient number, since it is larger than the sum of its proper divisors (1266382843).

11689945157 is a wasteful number, since it uses less digits than its factorization.

11689945157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817 (or 1806 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 56.

The spelling of 11689945157 in words is "eleven billion, six hundred eighty-nine million, nine hundred forty-five thousand, one hundred fifty-seven".