2722664364991 has 4 divisors (see below), whose sum is σ = 2722694874984. Its totient is φ = 2722633855000.

The previous prime is 2722664364961. The next prime is 2722664364997. The reversal of 2722664364991 is 1994634662272.

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 2722664364991 - 2⁷ = 2722664364863 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 (2722664364997) 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, 15120745 + ... + 15299746.

It is an arithmetic number, because the mean of its divisors is an integer number (680673718746).

Almost surely, 2^{2722664364991} is an apocalyptic number.

2722664364991 is a deficient number, since it is larger than the sum of its proper divisors (30509993).

2722664364991 is an equidigital number, since it uses as much as digits as its factorization.

2722664364991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30509992.

The product of its digits is 47029248, while the sum is 61.

The spelling of 2722664364991 in words is "two trillion, seven hundred twenty-two billion, six hundred sixty-four million, three hundred sixty-four thousand, nine hundred ninety-one".