12581892479 has 8 divisors (see below), whose sum is σ = 13556327232. Its totient is φ = 11608400160.

The previous prime is 12581892467. The next prime is 12581892481. The reversal of 12581892479 is 97429818521.

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

It is a cyclic number.

It is not a de Polignac number, because 12581892479 - 2²⁰ = 12580843903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12581897479) 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, 207752 + ... + 261389.

It is an arithmetic number, because the mean of its divisors is an integer number (1694540904).

Almost surely, 2^12581892479 is an apocalyptic number.

12581892479 is a deficient number, since it is larger than the sum of its proper divisors (974434753).

12581892479 is a wasteful number, since it uses less digits than its factorization.

12581892479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471217.

The product of its digits is 2903040, while the sum is 56.

The spelling of 12581892479 in words is "twelve billion, five hundred eighty-one million, eight hundred ninety-two thousand, four hundred seventy-nine".