12579856954 has 8 divisors (see below), whose sum is σ = 21565469088. Its totient is φ = 5391367260.

The previous prime is 12579856937. The next prime is 12579856967. The reversal of 12579856954 is 45965897521.

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

It is a junction number, because it is equal to n+sod(n) for n = 12579856892 and 12579856901.

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, 449280592 + ... + 449280619.

It is an arithmetic number, because the mean of its divisors is an integer number (2695683636).

Almost surely, 2^12579856954 is an apocalyptic number.

12579856954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12579856954 is a deficient number, since it is larger than the sum of its proper divisors (8985612134).

12579856954 is an equidigital number, since it uses as much as digits as its factorization.

12579856954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898561220.

The product of its digits is 27216000, while the sum is 61.

The spelling of 12579856954 in words is "twelve billion, five hundred seventy-nine million, eight hundred fifty-six thousand, nine hundred fifty-four".