12560787378 has 24 divisors (see below), whose sum is σ = 27344028816. Its totient is φ = 4167084600.

The previous prime is 12560787373. The next prime is 12560787383. The reversal of 12560787378 is 87378706521.

12560787378 is a `hidden beast` number, since 1 + 2 + 560 + 7 + 8 + 7 + 3 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (12560787373) and next prime (12560787383).

It is a super-2 number, since 2×12560787378² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12560787373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1649808 + ... + 1657403.

It is an arithmetic number, because the mean of its divisors is an integer number (1139334534).

Almost surely, 2^12560787378 is an apocalyptic number.

12560787378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12560787378 is an abundant number, since it is smaller than the sum of its proper divisors (14783241438).

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

12560787378 is a wasteful number, since it uses less digits than its factorization.

12560787378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307430 (or 3307427 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 12560787378 in words is "twelve billion, five hundred sixty million, seven hundred eighty-seven thousand, three hundred seventy-eight".