12157297754889 has 128 divisors (see below), whose sum is σ = 19785387900928. Its totient is φ = 6492857978880.

The previous prime is 12157297754831. The next prime is 12157297755011. The reversal of 12157297754889 is 98845779275121.

It is not a de Polignac number, because 12157297754889 - 2⁷ = 12157297754761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12157297754889.

It is not an unprimeable number, because it can be changed into a prime (12157292754889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4291314417 + ... + 4291317249.

It is an arithmetic number, because the mean of its divisors is an integer number (154573342976).

Almost surely, 2^{12157297754889} is an apocalyptic number.

It is an amenable number.

12157297754889 is a deficient number, since it is larger than the sum of its proper divisors (7628090146039).

12157297754889 is a wasteful number, since it uses less digits than its factorization.

12157297754889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167.

The product of its digits is 711244800, while the sum is 75.

The spelling of 12157297754889 in words is "twelve trillion, one hundred fifty-seven billion, two hundred ninety-seven million, seven hundred fifty-four thousand, eight hundred eighty-nine".