12555387430 has 32 divisors (see below), whose sum is σ = 23609263104. Its totient is φ = 4798306656.

The previous prime is 12555387419. The next prime is 12555387491. The reversal of 12555387430 is 3478355521.

12555387430 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173239 + ... + 234781.

It is an arithmetic number, because the mean of its divisors is an integer number (737789472).

Almost surely, 2^12555387430 is an apocalyptic number.

12555387430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12555387430 is a deficient number, since it is larger than the sum of its proper divisors (11053875674).

12555387430 is a wasteful number, since it uses less digits than its factorization.

12555387430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62460.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 12555387430 in words is "twelve billion, five hundred fifty-five million, three hundred eighty-seven thousand, four hundred thirty".