8536515861 has 16 divisors (see below), whose sum is σ = 11637815616. Its totient is φ = 5563873536.

The previous prime is 8536515853. The next prime is 8536515929. The reversal of 8536515861 is 1685156358.

It is not a de Polignac number, because 8536515861 - 2³ = 8536515853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8536515861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8536515821) 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, 49860 + ... + 139853.

It is an arithmetic number, because the mean of its divisors is an integer number (727363476).

Almost surely, 2^8536515861 is an apocalyptic number.

It is an amenable number.

8536515861 is a deficient number, since it is larger than the sum of its proper divisors (3101299755).

8536515861 is a wasteful number, since it uses less digits than its factorization.

8536515861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190052.

The product of its digits is 864000, while the sum is 48.

The square root of 8536515861 is about 92393.2674008231. The cubic root of 8536515861 is about 2043.7458299085.

The spelling of 8536515861 in words is "eight billion, five hundred thirty-six million, five hundred fifteen thousand, eight hundred sixty-one".