12988946091 has 16 divisors (see below), whose sum is σ = 19502466048. Its totient is φ = 7618149600.

The previous prime is 12988946077. The next prime is 12988946107. The reversal of 12988946091 is 19064988921.

12988946091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12988946091 - 2¹⁷ = 12988815019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12988446091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6347436 + ... + 6349481.

It is an arithmetic number, because the mean of its divisors is an integer number (1218904128).

Almost surely, 2^12988946091 is an apocalyptic number.

12988946091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12988946091 is a deficient number, since it is larger than the sum of its proper divisors (6513519957).

12988946091 is a wasteful number, since it uses less digits than its factorization.

12988946091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12696962.

The product of its (nonzero) digits is 2239488, while the sum is 57.

The spelling of 12988946091 in words is "twelve billion, nine hundred eighty-eight million, nine hundred forty-six thousand, ninety-one".