12782378888 has 16 divisors (see below), whose sum is σ = 23969472000. Its totient is φ = 6390519696.

The previous prime is 12782378881. The next prime is 12782378911. The reversal of 12782378888 is 88887328721.

It is a self number, because there is not a number n which added to its sum of digits gives 12782378888.

It is not an unprimeable number, because it can be changed into a prime (12782378881) 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, 2633 + ... + 159911.

It is an arithmetic number, because the mean of its divisors is an integer number (1498092000).

Almost surely, 2^12782378888 is an apocalyptic number.

It is an amenable number.

12782378888 is a deficient number, since it is larger than the sum of its proper divisors (11187093112).

12782378888 is a wasteful number, since it uses less digits than its factorization.

12782378888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167444 (or 167440 counting only the distinct ones).

The product of its digits is 19267584, while the sum is 62.

The spelling of 12782378888 in words is "twelve billion, seven hundred eighty-two million, three hundred seventy-eight thousand, eight hundred eighty-eight".