12891885377 has 32 divisors (see below), whose sum is σ = 15626649600. Its totient is φ = 10389556800.

The previous prime is 12891885371. The next prime is 12891885379. The reversal of 12891885377 is 77358819821.

It is not a de Polignac number, because 12891885377 - 2⁶ = 12891885313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12891885371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13699727 + ... + 13700667.

It is an arithmetic number, because the mean of its divisors is an integer number (488332800).

Almost surely, 2^12891885377 is an apocalyptic number.

It is an amenable number.

12891885377 is a deficient number, since it is larger than the sum of its proper divisors (2734764223).

12891885377 is a wasteful number, since it uses less digits than its factorization.

12891885377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637.

The product of its digits is 6773760, while the sum is 59.

The spelling of 12891885377 in words is "twelve billion, eight hundred ninety-one million, eight hundred eighty-five thousand, three hundred seventy-seven".