12970727677 has 8 divisors (see below), whose sum is σ = 13736028600. Its totient is φ = 12205684224.

The previous prime is 12970727669. The next prime is 12970727681. The reversal of 12970727677 is 77672707921.

It can be written as a sum of positive squares in 4 ways, for example, as 5337909721 + 7632817956 = 73061^2 + 87366^2 .

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 12970727677 - 2³ = 12970727669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12970727687) 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, 44649 + ... + 167137.

It is an arithmetic number, because the mean of its divisors is an integer number (1717003575).

Almost surely, 2^12970727677 is an apocalyptic number.

12970727677 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12970727677 is a deficient number, since it is larger than the sum of its proper divisors (765300923).

12970727677 is a wasteful number, since it uses less digits than its factorization.

12970727677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128735.

The product of its (nonzero) digits is 3630312, while the sum is 55.

The spelling of 12970727677 in words is "twelve billion, nine hundred seventy million, seven hundred twenty-seven thousand, six hundred seventy-seven".