12554347858 has 32 divisors (see below), whose sum is σ = 20467923840. Its totient is φ = 5775054480.

The previous prime is 12554347829. The next prime is 12554347859. The reversal of 12554347858 is 85874345521.

It is a super-2 number, since 2×12554347858² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12554347859) 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, 1361941 + ... + 1371127.

It is an arithmetic number, because the mean of its divisors is an integer number (639622620).

Almost surely, 2^12554347858 is an apocalyptic number.

12554347858 is a deficient number, since it is larger than the sum of its proper divisors (7913575982).

12554347858 is an equidigital number, since it uses as much as digits as its factorization.

12554347858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9539 (or 9513 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 52.

The spelling of 12554347858 in words is "twelve billion, five hundred fifty-four million, three hundred forty-seven thousand, eight hundred fifty-eight".