6745211953 has 4 divisors (see below), whose sum is σ = 6769216548. Its totient is φ = 6721207360.

The previous prime is 6745211939. The next prime is 6745211959. The reversal of 6745211953 is 3591125476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2643193744 + 4102018209 = 51412^2 + 64047^2 .

It is a cyclic number.

It is not a de Polignac number, because 6745211953 - 2²⁵ = 6711657521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6745211959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12001876 + ... + 12002437.

It is an arithmetic number, because the mean of its divisors is an integer number (1692304137).

Almost surely, 2^6745211953 is an apocalyptic number.

It is an amenable number.

6745211953 is a deficient number, since it is larger than the sum of its proper divisors (24004595).

6745211953 is a wasteful number, since it uses less digits than its factorization.

6745211953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24004594.

The product of its digits is 226800, while the sum is 43.

The square root of 6745211953 is about 82129.2393304601. The cubic root of 6745211953 is about 1889.4346127575.

The spelling of 6745211953 in words is "six billion, seven hundred forty-five million, two hundred eleven thousand, nine hundred fifty-three".