12811097580 has 24 divisors (see below), whose sum is σ = 35871073392. Its totient is φ = 3416292672.

The previous prime is 12811097527. The next prime is 12811097591. The reversal of 12811097580 is 8579011821.

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, 106759087 + ... + 106759206.

It is an arithmetic number, because the mean of its divisors is an integer number (1494628058).

Almost surely, 2^12811097580 is an apocalyptic number.

12811097580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12811097580 is an abundant number, since it is smaller than the sum of its proper divisors (23059975812).

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

12811097580 is a wasteful number, since it uses less digits than its factorization.

12811097580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213518305 (or 213518303 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 42.

The spelling of 12811097580 in words is "twelve billion, eight hundred eleven million, ninety-seven thousand, five hundred eighty".