12699706905385 has 32 divisors (see below), whose sum is σ = 15600114616320. Its totient is φ = 9922209550848.

The previous prime is 12699706905383. The next prime is 12699706905467. The reversal of 12699706905385 is 58350960799621.

It is a cyclic number.

It is not a de Polignac number, because 12699706905385 - 2¹ = 12699706905383 is a prime.

It is a super-3 number, since 3×12699706905385³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12699706905383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 588238171 + ... + 588259759.

It is an arithmetic number, because the mean of its divisors is an integer number (487503581760).

Almost surely, 2^{12699706905385} is an apocalyptic number.

It is an amenable number.

12699706905385 is a deficient number, since it is larger than the sum of its proper divisors (2900407710935).

12699706905385 is a wasteful number, since it uses less digits than its factorization.

12699706905385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37417.

The product of its (nonzero) digits is 220449600, while the sum is 70.

The spelling of 12699706905385 in words is "twelve trillion, six hundred ninety-nine billion, seven hundred six million, nine hundred five thousand, three hundred eighty-five".