12880694090781 has 384 divisors, whose sum is σ = 23627807723520. Its totient is φ = 6922182758400.

The previous prime is 12880694090779. The next prime is 12880694090809. The reversal of 12880694090781 is 18709049608821.

12880694090781 is a `hidden beast` number, since 1 + 28 + 80 + 69 + 409 + 0 + 78 + 1 = 666.

It is not a de Polignac number, because 12880694090781 - 2¹ = 12880694090779 is a prime.

It is a super-2 number, since 2×12880694090781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880694010781) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 6317161360 + ... + 6317163398.

It is an arithmetic number, because the mean of its divisors is an integer number (61530749280).

Almost surely, 2^{12880694090781} is an apocalyptic number.

12880694090781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12880694090781 is a deficient number, since it is larger than the sum of its proper divisors (10747113632739).

12880694090781 is a wasteful number, since it uses less digits than its factorization.

12880694090781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The spelling of 12880694090781 in words is "twelve trillion, eight hundred eighty billion, six hundred ninety-four million, ninety thousand, seven hundred eighty-one".