12811762686 has 16 divisors (see below), whose sum is σ = 25625606400. Its totient is φ = 4270240728.

The previous prime is 12811762589. The next prime is 12811762687. The reversal of 12811762686 is 68626711821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12811762687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 160073.

It is an arithmetic number, because the mean of its divisors is an integer number (1601600400).

Almost surely, 2^12811762686 is an apocalyptic number.

12811762686 is an abundant number, since it is smaller than the sum of its proper divisors (12813843714).

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

12811762686 is a wasteful number, since it uses less digits than its factorization.

12811762686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173423.

The product of its digits is 387072, while the sum is 48.

The spelling of 12811762686 in words is "twelve billion, eight hundred eleven million, seven hundred sixty-two thousand, six hundred eighty-six".