8537220013 has 16 divisors (see below), whose sum is σ = 10308026880. Its totient is φ = 6914952576.

The previous prime is 8537220001. The next prime is 8537220061. The reversal of 8537220013 is 3100227358.

It is not a de Polignac number, because 8537220013 - 2⁵ = 8537219981 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 (8537220313) 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, 437856 + ... + 456937.

It is an arithmetic number, because the mean of its divisors is an integer number (644251680).

Almost surely, 2^8537220013 is an apocalyptic number.

It is an amenable number.

8537220013 is a deficient number, since it is larger than the sum of its proper divisors (1770806867).

8537220013 is a wasteful number, since it uses less digits than its factorization.

8537220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894876.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 8537220013 is about 92397.0779462208. The cubic root of 8537220013 is about 2043.8020225508.

The spelling of 8537220013 in words is "eight billion, five hundred thirty-seven million, two hundred twenty thousand, thirteen".