12455521484 has 18 divisors (see below), whose sum is σ = 25355883420. Its totient is φ = 5338080552.

The previous prime is 12455521483. The next prime is 12455521531. The reversal of 12455521484 is 48412555421.

It is not an unprimeable number, because it can be changed into a prime (12455521483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31774094 + ... + 31774485.

It is an arithmetic number, because the mean of its divisors is an integer number (1408660190).

Almost surely, 2^12455521484 is an apocalyptic number.

12455521484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12455521484 is an abundant number, since it is smaller than the sum of its proper divisors (12900361936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12455521484 is a wasteful number, since it uses less digits than its factorization.

12455521484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63548597 (or 63548588 counting only the distinct ones).

The product of its digits is 256000, while the sum is 41.

The spelling of 12455521484 in words is "twelve billion, four hundred fifty-five million, five hundred twenty-one thousand, four hundred eighty-four".