8195516487 has 24 divisors (see below), whose sum is σ = 12464899200. Its totient is φ = 5174504208.

The previous prime is 8195516471. The next prime is 8195516491. The reversal of 8195516487 is 7846155918.

It is a happy number.

8195516487 is a `hidden beast` number, since 8 + 1 + 9 + 551 + 6 + 4 + 87 = 666.

It is not a de Polignac number, because 8195516487 - 2⁴ = 8195516471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8195516437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 794988 + ... + 805230.

It is an arithmetic number, because the mean of its divisors is an integer number (519370800).

Almost surely, 2^8195516487 is an apocalyptic number.

8195516487 is a deficient number, since it is larger than the sum of its proper divisors (4269382713).

8195516487 is a wasteful number, since it uses less digits than its factorization.

8195516487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14947 (or 14944 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The square root of 8195516487 is about 90529.0919373435. The cubic root of 8195516487 is about 2016.1620823189.

The spelling of 8195516487 in words is "eight billion, one hundred ninety-five million, five hundred sixteen thousand, four hundred eighty-seven".