12554453823 has 32 divisors (see below), whose sum is σ = 17298677760. Its totient is φ = 8096025600.

The previous prime is 12554453773. The next prime is 12554453861. The reversal of 12554453823 is 32835445521.

It is not a de Polignac number, because 12554453823 - 2⁶ = 12554453759 is a prime.

It is a super-2 number, since 2×12554453823² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554453323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2319186 + ... + 2324592.

It is an arithmetic number, because the mean of its divisors is an integer number (540583680).

Almost surely, 2^12554453823 is an apocalyptic number.

12554453823 is a deficient number, since it is larger than the sum of its proper divisors (4744223937).

12554453823 is a wasteful number, since it uses less digits than its factorization.

12554453823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5687.

The product of its digits is 576000, while the sum is 42.

The spelling of 12554453823 in words is "twelve billion, five hundred fifty-four million, four hundred fifty-three thousand, eight hundred twenty-three".