12154888577 has 16 divisors (see below), whose sum is σ = 13472820480. Its totient is φ = 10894262400.

The previous prime is 12154888553. The next prime is 12154888631. The reversal of 12154888577 is 77588845121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12154888577 - 2²⁰ = 12153840001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12154878577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58424 + ... + 166502.

It is an arithmetic number, because the mean of its divisors is an integer number (842051280).

Almost surely, 2^12154888577 is an apocalyptic number.

It is an amenable number.

12154888577 is a deficient number, since it is larger than the sum of its proper divisors (1317931903).

12154888577 is a wasteful number, since it uses less digits than its factorization.

12154888577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108344.

The product of its digits is 5017600, while the sum is 56.

The spelling of 12154888577 in words is "twelve billion, one hundred fifty-four million, eight hundred eighty-eight thousand, five hundred seventy-seven".