8487512765 has 16 divisors (see below), whose sum is σ = 10341908928. Its totient is φ = 6685510656.

The previous prime is 8487512741. The next prime is 8487512771. The reversal of 8487512765 is 5672157848.

It is a cyclic number.

It is not a de Polignac number, because 8487512765 - 2¹⁰ = 8487511741 is a prime.

It is a Duffinian number.

It is a congruent 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, 917654 + ... + 926856.

It is an arithmetic number, because the mean of its divisors is an integer number (646369308).

Almost surely, 2^8487512765 is an apocalyptic number.

It is an amenable number.

8487512765 is a deficient number, since it is larger than the sum of its proper divisors (1854396163).

8487512765 is a wasteful number, since it uses less digits than its factorization.

8487512765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12028.

The product of its digits is 3763200, while the sum is 53.

The square root of 8487512765 is about 92127.6981423068. The cubic root of 8487512765 is about 2039.8276771170.

The spelling of 8487512765 in words is "eight billion, four hundred eighty-seven million, five hundred twelve thousand, seven hundred sixty-five".