12840370466 has 32 divisors (see below), whose sum is σ = 24172231680. Its totient is φ = 4969602000.

The previous prime is 12840370463. The next prime is 12840370537. The reversal of 12840370466 is 66407304821.

It is a super-2 number, since 2×12840370466² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12840370463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252836 + ... + 299343.

It is an arithmetic number, because the mean of its divisors is an integer number (755382240).

Almost surely, 2^12840370466 is an apocalyptic number.

12840370466 is a deficient number, since it is larger than the sum of its proper divisors (11331861214).

12840370466 is a wasteful number, since it uses less digits than its factorization.

12840370466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552350.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 12840370466 in words is "twelve billion, eight hundred forty million, three hundred seventy thousand, four hundred sixty-six".