2768307683221 has 8 divisors (see below), whose sum is σ = 2832885278784. Its totient is φ = 2703739103520.

The previous prime is 2768307683209. The next prime is 2768307683269. The reversal of 2768307683221 is 1223867038672.

It is a happy number.

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 2768307683221 - 2³¹ = 2766160199573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2768307603221) 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, 1630720 + ... + 2862841.

It is an arithmetic number, because the mean of its divisors is an integer number (354110659848).

Almost surely, 2^{2768307683221} is an apocalyptic number.

It is an amenable number.

2768307683221 is a deficient number, since it is larger than the sum of its proper divisors (64577595563).

2768307683221 is a wasteful number, since it uses less digits than its factorization.

2768307683221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4507931.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 2768307683221 in words is "two trillion, seven hundred sixty-eight billion, three hundred seven million, six hundred eighty-three thousand, two hundred twenty-one".