6745974923 has 4 divisors (see below), whose sum is σ = 6746672328. Its totient is φ = 6745277520.

The previous prime is 6745974913. The next prime is 6745974967. The reversal of 6745974923 is 3294795476.

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 6745974923 - 2²⁰ = 6744926347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6745974913) 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, 333986 + ... + 353607.

It is an arithmetic number, because the mean of its divisors is an integer number (1686668082).

Almost surely, 2^6745974923 is an apocalyptic number.

6745974923 is a deficient number, since it is larger than the sum of its proper divisors (697405).

6745974923 is an equidigital number, since it uses as much as digits as its factorization.

6745974923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697404.

The product of its digits is 11430720, while the sum is 56.

The square root of 6745974923 is about 82133.8841343815. The cubic root of 6745974923 is about 1889.5058498358.

The spelling of 6745974923 in words is "six billion, seven hundred forty-five million, nine hundred seventy-four thousand, nine hundred twenty-three".