12954513578 has 8 divisors (see below), whose sum is σ = 19436710368. Its totient is φ = 6475610124.

The previous prime is 12954513577. The next prime is 12954513581. The reversal of 12954513578 is 87531545921.

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

It is not an unprimeable number, because it can be changed into a prime (12954513571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813476 + ... + 829247.

It is an arithmetic number, because the mean of its divisors is an integer number (2429588796).

Almost surely, 2^12954513578 is an apocalyptic number.

12954513578 is a deficient number, since it is larger than the sum of its proper divisors (6482196790).

12954513578 is a wasteful number, since it uses less digits than its factorization.

12954513578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646668.

The product of its digits is 1512000, while the sum is 50.

The spelling of 12954513578 in words is "twelve billion, nine hundred fifty-four million, five hundred thirteen thousand, five hundred seventy-eight".