6723142545 has 16 divisors (see below), whose sum is σ = 12293746560. Its totient is φ = 3073436544.

The previous prime is 6723142477. The next prime is 6723142549. The reversal of 6723142545 is 5452413276.

It is not a de Polignac number, because 6723142545 - 2¹¹ = 6723140497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6723142549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32014860 + ... + 32015069.

It is an arithmetic number, because the mean of its divisors is an integer number (768359160).

Almost surely, 2^6723142545 is an apocalyptic number.

It is an amenable number.

6723142545 is a deficient number, since it is larger than the sum of its proper divisors (5570604015).

6723142545 is a wasteful number, since it uses less digits than its factorization.

6723142545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64029944.

The product of its digits is 201600, while the sum is 39.

The square root of 6723142545 is about 81994.7714491601. The cubic root of 6723142545 is about 1887.3717043333.

The spelling of 6723142545 in words is "six billion, seven hundred twenty-three million, one hundred forty-two thousand, five hundred forty-five".