2667731371663 has 4 divisors (see below), whose sum is σ = 2671695311968. Its totient is φ = 2663767431360.

The previous prime is 2667731371639. The next prime is 2667731371667. The reversal of 2667731371663 is 3661731377662.

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 2667731371663 - 2¹⁷ = 2667731240591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2667731371598 and 2667731371607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667731371667) 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, 1981969143 + ... + 1981970488.

It is an arithmetic number, because the mean of its divisors is an integer number (667923827992).

Almost surely, 2^{2667731371663} is an apocalyptic number.

2667731371663 is a deficient number, since it is larger than the sum of its proper divisors (3963940305).

2667731371663 is an equidigital number, since it uses as much as digits as its factorization.

2667731371663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963940304.

The product of its digits is 24004512, while the sum is 58.

The spelling of 2667731371663 in words is "two trillion, six hundred sixty-seven billion, seven hundred thirty-one million, three hundred seventy-one thousand, six hundred sixty-three".