12780338026 has 8 divisors (see below), whose sum is σ = 19171344384. Its totient is φ = 6389889900.

The previous prime is 12780337991. The next prime is 12780338113. The reversal of 12780338026 is 62083308721.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12780338026.

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, 76650 + ... + 177301.

It is an arithmetic number, because the mean of its divisors is an integer number (2396418048).

Almost surely, 2^12780338026 is an apocalyptic number.

12780338026 is a deficient number, since it is larger than the sum of its proper divisors (6391006358).

12780338026 is a wasteful number, since it uses less digits than its factorization.

12780338026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279116.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 12780338026 in words is "twelve billion, seven hundred eighty million, three hundred thirty-eight thousand, twenty-six".