12154759811 has 4 divisors (see below), whose sum is σ = 12160682352. Its totient is φ = 12148837272.

The previous prime is 12154759769. The next prime is 12154759843. The reversal of 12154759811 is 11895745121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12154759811 - 2²² = 12150565507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12154752811) 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, 2958191 + ... + 2962296.

It is an arithmetic number, because the mean of its divisors is an integer number (3040170588).

Almost surely, 2^12154759811 is an apocalyptic number.

12154759811 is a deficient number, since it is larger than the sum of its proper divisors (5922541).

12154759811 is an equidigital number, since it uses as much as digits as its factorization.

12154759811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922540.

The product of its digits is 100800, while the sum is 44.

The spelling of 12154759811 in words is "twelve billion, one hundred fifty-four million, seven hundred fifty-nine thousand, eight hundred eleven".