12378282237 has 12 divisors (see below), whose sum is σ = 18456507264. Its totient is φ = 7985988360.

The previous prime is 12378282197. The next prime is 12378282269. The reversal of 12378282237 is 73228287321.

It is not a de Polignac number, because 12378282237 - 2⁶ = 12378282173 is a prime.

It is a super-2 number, since 2×12378282237² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12378282192 and 12378282201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378282337) 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, 22183023 + ... + 22183580.

It is an arithmetic number, because the mean of its divisors is an integer number (1538042272).

Almost surely, 2^12378282237 is an apocalyptic number.

It is an amenable number.

12378282237 is a deficient number, since it is larger than the sum of its proper divisors (6078225027).

12378282237 is a wasteful number, since it uses less digits than its factorization.

12378282237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44366640 (or 44366637 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The spelling of 12378282237 in words is "twelve billion, three hundred seventy-eight million, two hundred eighty-two thousand, two hundred thirty-seven".