12548854279491 has 8 divisors (see below), whose sum is σ = 16791349499664. Its totient is φ = 8336130956160.

The previous prime is 12548854279483. The next prime is 12548854279513. The reversal of 12548854279491 is 19497245884521.

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

It is not a de Polignac number, because 12548854279491 - 2³ = 12548854279483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12548854279391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7442973226 + ... + 7442974911.

It is an arithmetic number, because the mean of its divisors is an integer number (2098918687458).

Almost surely, 2^{12548854279491} is an apocalyptic number.

12548854279491 is a deficient number, since it is larger than the sum of its proper divisors (4242495220173).

12548854279491 is a wasteful number, since it uses less digits than its factorization.

12548854279491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14885948421.

The product of its digits is 232243200, while the sum is 69.

The spelling of 12548854279491 in words is "twelve trillion, five hundred forty-eight billion, eight hundred fifty-four million, two hundred seventy-nine thousand, four hundred ninety-one".