12891693080090 has 32 divisors (see below), whose sum is σ = 26646944552640. Its totient is φ = 4441157424000.

The previous prime is 12891693080089. The next prime is 12891693080141. The reversal of 12891693080090 is 9008039619821.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3084135011 + ... + 3084139190.

It is an arithmetic number, because the mean of its divisors is an integer number (832717017270).

Almost surely, 2^{12891693080090} is an apocalyptic number.

12891693080090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12891693080090 is an abundant number, since it is smaller than the sum of its proper divisors (13755251472550).

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

12891693080090 is a wasteful number, since it uses less digits than its factorization.

12891693080090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6168274238.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 12891693080090 in words is "twelve trillion, eight hundred ninety-one billion, six hundred ninety-three million, eighty thousand, ninety".