12677698081 has 8 divisors (see below), whose sum is σ = 12867548904. Its totient is φ = 12488284800.

The previous prime is 12677698057. The next prime is 12677698097. The reversal of 12677698081 is 18089677621.

It can be written as a sum of positive squares in 4 ways, for example, as 92448225 + 12585249856 = 9615^2 + 112184^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12677698081 - 2¹¹ = 12677696033 is a prime.

It is a super-2 number, since 2×12677698081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12677698021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50770 + ... + 167131.

It is an arithmetic number, because the mean of its divisors is an integer number (1608443613).

Almost surely, 2^12677698081 is an apocalyptic number.

It is an amenable number.

12677698081 is a deficient number, since it is larger than the sum of its proper divisors (189850823).

12677698081 is an equidigital number, since it uses as much as digits as its factorization.

12677698081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218771.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 12677698081 in words is "twelve billion, six hundred seventy-seven million, six hundred ninety-eight thousand, eighty-one".