12545642254 has 8 divisors (see below), whose sum is σ = 18821612088. Its totient is φ = 6271771560.

The previous prime is 12545642233. The next prime is 12545642267. The reversal of 12545642254 is 45224654521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509757 + ... + 533800.

It is an arithmetic number, because the mean of its divisors is an integer number (2352701511).

Almost surely, 2^12545642254 is an apocalyptic number.

12545642254 is a deficient number, since it is larger than the sum of its proper divisors (6275969834).

12545642254 is a wasteful number, since it uses less digits than its factorization.

12545642254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049570.

The product of its digits is 384000, while the sum is 40.

The spelling of 12545642254 in words is "twelve billion, five hundred forty-five million, six hundred forty-two thousand, two hundred fifty-four".