8572157215 has 16 divisors (see below), whose sum is σ = 10449645408. Its totient is φ = 6749208576.

The previous prime is 8572157213. The next prime is 8572157221. The reversal of 8572157215 is 5127512758.

It is a cyclic number.

It is not a de Polignac number, because 8572157215 - 2¹ = 8572157213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8572157213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375159 + ... + 397351.

It is an arithmetic number, because the mean of its divisors is an integer number (653102838).

Almost surely, 2^8572157215 is an apocalyptic number.

8572157215 is a deficient number, since it is larger than the sum of its proper divisors (1877488193).

8572157215 is a wasteful number, since it uses less digits than its factorization.

8572157215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23418.

The product of its digits is 196000, while the sum is 43.

The square root of 8572157215 is about 92585.9450186690. The cubic root of 8572157215 is about 2046.5862052522.

The spelling of 8572157215 in words is "eight billion, five hundred seventy-two million, one hundred fifty-seven thousand, two hundred fifteen".