8517139080 has 32 divisors (see below), whose sum is σ = 25551417600. Its totient is φ = 2271237056.

The previous prime is 8517139027. The next prime is 8517139097. The reversal of 8517139080 is 809317158.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35487960 + ... + 35488199.

It is an arithmetic number, because the mean of its divisors is an integer number (798481800).

Almost surely, 2^8517139080 is an apocalyptic number.

It is an amenable number.

8517139080 is an abundant number, since it is smaller than the sum of its proper divisors (17034278520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8517139080 is a wasteful number, since it uses less digits than its factorization.

8517139080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70976173 (or 70976169 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 8517139080 is about 92288.3474768077. The cubic root of 8517139080 is about 2042.1983126678.

It can be divided in two parts, 85171 and 39080, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 8517139080 in words is "eight billion, five hundred seventeen million, one hundred thirty-nine thousand, eighty".