8572640567 has 2 divisors, whose sum is σ = 8572640568. Its totient is φ = 8572640566.

The previous prime is 8572640491. The next prime is 8572640599. The reversal of 8572640567 is 7650462758.

8572640567 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8572640567 - 2⁸ = 8572640311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8572645567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286320283 + 4286320284.

It is an arithmetic number, because the mean of its divisors is an integer number (4286320284).

Almost surely, 2^8572640567 is an apocalyptic number.

8572640567 is a deficient number, since it is larger than the sum of its proper divisors (1).

8572640567 is an equidigital number, since it uses as much as digits as its factorization.

8572640567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The square root of 8572640567 is about 92588.5552700764. Note that the first 3 decimals coincide. The cubic root of 8572640567 is about 2046.6246709857.

The spelling of 8572640567 in words is "eight billion, five hundred seventy-two million, six hundred forty thousand, five hundred sixty-seven".