12778860584 has 16 divisors (see below), whose sum is σ = 27383272800. Its totient is φ = 5476654512.

The previous prime is 12778860583. The next prime is 12778860587. The reversal of 12778860584 is 48506887721.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 228193939 = 12778860584 / (1 + 2 + 7 + 7 + 8 + 8 + 6 + 0 + 5 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (12778860583) 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, 114096914 + ... + 114097025.

It is an arithmetic number, because the mean of its divisors is an integer number (1711454550).

Almost surely, 2^12778860584 is an apocalyptic number.

12778860584 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12778860584 is an abundant number, since it is smaller than the sum of its proper divisors (14604412216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12778860584 is a wasteful number, since it uses less digits than its factorization.

12778860584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228193952 (or 228193948 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 12778860584 in words is "twelve billion, seven hundred seventy-eight million, eight hundred sixty thousand, five hundred eighty-four".