12709716477 has 32 divisors (see below), whose sum is σ = 18170231040. Its totient is φ = 7874227200.

The previous prime is 12709716431. The next prime is 12709716491. The reversal of 12709716477 is 77461790721.

It is not a de Polignac number, because 12709716477 - 2¹¹ = 12709714429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12709716277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2000568 + ... + 2006910.

It is an arithmetic number, because the mean of its divisors is an integer number (567819720).

Almost surely, 2^12709716477 is an apocalyptic number.

12709716477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12709716477 is a deficient number, since it is larger than the sum of its proper divisors (5460514563).

12709716477 is a wasteful number, since it uses less digits than its factorization.

12709716477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853.

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

The spelling of 12709716477 in words is "twelve billion, seven hundred nine million, seven hundred sixteen thousand, four hundred seventy-seven".