8571272722 has 4 divisors (see below), whose sum is σ = 12856909086. Its totient is φ = 4285636360.

The previous prime is 8571272711. The next prime is 8571272729. The reversal of 8571272722 is 2272721758.

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

It can be written as a sum of positive squares in only one way, i.e., 8504343961 + 66928761 = 92219^2 + 8181^2 .

It is a super-3 number, since 3×8571272722³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8571272729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2142818179 + ... + 2142818182.

Almost surely, 2^8571272722 is an apocalyptic number.

8571272722 is a deficient number, since it is larger than the sum of its proper divisors (4285636364).

8571272722 is a wasteful number, since it uses less digits than its factorization.

8571272722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285636363.

The product of its digits is 219520, while the sum is 43.

The square root of 8571272722 is about 92581.1682903170. The cubic root of 8571272722 is about 2046.5158124915.

The spelling of 8571272722 in words is "eight billion, five hundred seventy-one million, two hundred seventy-two thousand, seven hundred twenty-two".