8265687890 has 16 divisors (see below), whose sum is σ = 15280353432. Its totient is φ = 3216916224.

The previous prime is 8265687889. The next prime is 8265687901. The reversal of 8265687890 is 987865628.

It can be written as a sum of positive squares in 4 ways, for example, as 8264809921 + 877969 = 90911^2 + 937^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11169479 + ... + 11170218.

Almost surely, 2^8265687890 is an apocalyptic number.

8265687890 is a deficient number, since it is larger than the sum of its proper divisors (7014665542).

8265687890 is a wasteful number, since it uses less digits than its factorization.

8265687890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22339741.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The square root of 8265687890 is about 90915.8285998648. The cubic root of 8265687890 is about 2021.8999777027.

The spelling of 8265687890 in words is "eight billion, two hundred sixty-five million, six hundred eighty-seven thousand, eight hundred ninety".