8487705265 has 16 divisors (see below), whose sum is σ = 10979812368. Its totient is φ = 6261509376.

The previous prime is 8487705151. The next prime is 8487705287. The reversal of 8487705265 is 5625077848.

It can be written as a sum of positive squares in 8 ways, for example, as 274995889 + 8212709376 = 16583^2 + 90624^2 .

It is a cyclic number.

It is not a de Polignac number, because 8487705265 - 2¹³ = 8487697073 is a prime.

It is a super-2 number, since 2×8487705265² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682 + ... + 130291.

It is an arithmetic number, because the mean of its divisors is an integer number (686238273).

Almost surely, 2^8487705265 is an apocalyptic number.

It is an amenable number.

8487705265 is a deficient number, since it is larger than the sum of its proper divisors (2492107103).

8487705265 is a wasteful number, since it uses less digits than its factorization.

8487705265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131988.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The square root of 8487705265 is about 92128.7428819041. The cubic root of 8487705265 is about 2039.8430983549.

The spelling of 8487705265 in words is "eight billion, four hundred eighty-seven million, seven hundred five thousand, two hundred sixty-five".