12688499031 has 16 divisors (see below), whose sum is σ = 18234349056. Its totient is φ = 7801893216.

The previous prime is 12688499029. The next prime is 12688499071. The reversal of 12688499031 is 13099488621.

12688499031 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 12688499031 - 2¹ = 12688499029 is a prime.

It is a super-2 number, since 2×12688499031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12688499071) 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, 85315 + ... + 180708.

It is an arithmetic number, because the mean of its divisors is an integer number (1139646816).

Almost surely, 2^12688499031 is an apocalyptic number.

12688499031 is a deficient number, since it is larger than the sum of its proper divisors (5545850025).

12688499031 is a wasteful number, since it uses less digits than its factorization.

12688499031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267262.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 12688499031 in words is "twelve billion, six hundred eighty-eight million, four hundred ninety-nine thousand, thirty-one".