12690086844 has 24 divisors (see below), whose sum is σ = 29612144128. Its totient is φ = 4229751600.

The previous prime is 12690086831. The next prime is 12690086873. The reversal of 12690086844 is 44868009621.

It is a super-2 number, since 2×12690086844² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12690086793 and 12690086802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248469 + ... + 295155.

Almost surely, 2^12690086844 is an apocalyptic number.

It is an amenable number.

12690086844 is an abundant number, since it is smaller than the sum of its proper divisors (16922057284).

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

12690086844 is a wasteful number, since it uses less digits than its factorization.

12690086844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69345 (or 69343 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 12690086844 in words is "twelve billion, six hundred ninety million, eighty-six thousand, eight hundred forty-four".