12897730077 has 16 divisors (see below), whose sum is σ = 17805305280. Its totient is φ = 8294832000.

The previous prime is 12897730061. The next prime is 12897730093. The reversal of 12897730077 is 77003779821.

It is an interprime number because it is at equal distance from previous prime (12897730061) and next prime (12897730093).

It is not a de Polignac number, because 12897730077 - 2⁴ = 12897730061 is a prime.

It is a super-2 number, since 2×12897730077² (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 (12897730007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38577 + ... + 165177.

It is an arithmetic number, because the mean of its divisors is an integer number (1112831580).

Almost surely, 2^12897730077 is an apocalyptic number.

It is an amenable number.

12897730077 is a deficient number, since it is larger than the sum of its proper divisors (4907575203).

12897730077 is a wasteful number, since it uses less digits than its factorization.

12897730077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127804.

The product of its (nonzero) digits is 1037232, while the sum is 51.

The spelling of 12897730077 in words is "twelve billion, eight hundred ninety-seven million, seven hundred thirty thousand, seventy-seven".