2123392768667 has 4 divisors (see below), whose sum is σ = 2123398080936. Its totient is φ = 2123387456400.

The previous prime is 2123392768633. The next prime is 2123392768681. The reversal of 2123392768667 is 7668672933212.

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 2123392768667 - 2³² = 2119097801371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123392768687) 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, 2003033 + ... + 2873834.

It is an arithmetic number, because the mean of its divisors is an integer number (530849520234).

Almost surely, 2^{2123392768667} is an apocalyptic number.

2123392768667 is a deficient number, since it is larger than the sum of its proper divisors (5312269).

2123392768667 is an equidigital number, since it uses as much as digits as its factorization.

2123392768667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312268.

The product of its digits is 54867456, while the sum is 62.

The spelling of 2123392768667 in words is "two trillion, one hundred twenty-three billion, three hundred ninety-two million, seven hundred sixty-eight thousand, six hundred sixty-seven".