12437959985 has 32 divisors (see below), whose sum is σ = 17483122944. Its totient is φ = 8393728000.

The previous prime is 12437959943. The next prime is 12437959999. The reversal of 12437959985 is 58995973421.

12437959985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12437959985 - 2¹⁴ = 12437943601 is a prime.

It is a super-2 number, since 2×12437959985² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27296 + ... + 160065.

It is an arithmetic number, because the mean of its divisors is an integer number (546347592).

Almost surely, 2^12437959985 is an apocalyptic number.

It is an amenable number.

12437959985 is a deficient number, since it is larger than the sum of its proper divisors (5045162959).

12437959985 is a wasteful number, since it uses less digits than its factorization.

12437959985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187465.

The product of its digits is 24494400, while the sum is 62.

The spelling of 12437959985 in words is "twelve billion, four hundred thirty-seven million, nine hundred fifty-nine thousand, nine hundred eighty-five".