12970977577 has 8 divisors (see below), whose sum is σ = 13813366536. Its totient is φ = 12137409792.

The previous prime is 12970977571. The next prime is 12970977619. The reversal of 12970977577 is 77577907921.

It can be written as a sum of positive squares in 4 ways, for example, as 7275407616 + 5695569961 = 85296^2 + 75469^2 .

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 12970977577 - 2¹¹ = 12970975529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12970977571) 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 7 ways as a sum of consecutive naturals, for example, 2202258 + ... + 2208139.

It is an arithmetic number, because the mean of its divisors is an integer number (1726670817).

Almost surely, 2^12970977577 is an apocalyptic number.

12970977577 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12970977577 is a deficient number, since it is larger than the sum of its proper divisors (842388959).

12970977577 is a wasteful number, since it uses less digits than its factorization.

12970977577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410587.

The product of its (nonzero) digits is 13613670, while the sum is 61.

The spelling of 12970977577 in words is "twelve billion, nine hundred seventy million, nine hundred seventy-seven thousand, five hundred seventy-seven".