12347875782 has 48 divisors (see below), whose sum is σ = 29897758800. Its totient is φ = 3650515200.

The previous prime is 12347875777. The next prime is 12347875807. The reversal of 12347875782 is 28757874321.

12347875782 is a `hidden beast` number, since 1 + 23 + 47 + 8 + 7 + 578 + 2 = 666.

It is a super-2 number, since 2×12347875782² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752407 + ... + 768642.

It is an arithmetic number, because the mean of its divisors is an integer number (622869975).

Almost surely, 2^12347875782 is an apocalyptic number.

12347875782 is an abundant number, since it is smaller than the sum of its proper divisors (17549883018).

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

12347875782 is a wasteful number, since it uses less digits than its factorization.

12347875782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521109 (or 1521106 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The spelling of 12347875782 in words is "twelve billion, three hundred forty-seven million, eight hundred seventy-five thousand, seven hundred eighty-two".