12701377771 has 4 divisors (see below), whose sum is σ = 12707676952. Its totient is φ = 12695078592.

The previous prime is 12701377763. The next prime is 12701377789. The reversal of 12701377771 is 17777310721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12701377771 - 2³ = 12701377763 is a prime.

It is a super-2 number, since 2×12701377771² (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 (12701377721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3146565 + ... + 3150598.

It is an arithmetic number, because the mean of its divisors is an integer number (3176919238).

Almost surely, 2^12701377771 is an apocalyptic number.

12701377771 is a deficient number, since it is larger than the sum of its proper divisors (6299181).

12701377771 is an equidigital number, since it uses as much as digits as its factorization.

12701377771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299180.

The product of its (nonzero) digits is 100842, while the sum is 43.

The spelling of 12701377771 in words is "twelve billion, seven hundred one million, three hundred seventy-seven thousand, seven hundred seventy-one".