12777890735 has 8 divisors (see below), whose sum is σ = 16140493680. Its totient is φ = 9684296064.

The previous prime is 12777890731. The next prime is 12777890771. The reversal of 12777890735 is 53709877721.

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 12777890735 - 2² = 12777890731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12777890731) 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, 67251962 + ... + 67252151.

It is an arithmetic number, because the mean of its divisors is an integer number (2017561710).

Almost surely, 2^12777890735 is an apocalyptic number.

12777890735 is a deficient number, since it is larger than the sum of its proper divisors (3362602945).

12777890735 is a wasteful number, since it uses less digits than its factorization.

12777890735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134504137.

The product of its (nonzero) digits is 5186160, while the sum is 56.

The spelling of 12777890735 in words is "twelve billion, seven hundred seventy-seven million, eight hundred ninety thousand, seven hundred thirty-five".