8261275564 has 12 divisors (see below), whose sum is σ = 14461209000. Its totient is φ = 4129501568.

The previous prime is 8261275549. The next prime is 8261275597. The reversal of 8261275564 is 4655721628.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267589 + ... + 296860.

It is an arithmetic number, because the mean of its divisors is an integer number (1205100750).

Almost surely, 2^8261275564 is an apocalyptic number.

It is an amenable number.

8261275564 is a deficient number, since it is larger than the sum of its proper divisors (6199933436).

8261275564 is a wasteful number, since it uses less digits than its factorization.

8261275564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568112 (or 568110 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The square root of 8261275564 is about 90891.5593660930. The cubic root of 8261275564 is about 2021.5401419633.

The spelling of 8261275564 in words is "eight billion, two hundred sixty-one million, two hundred seventy-five thousand, five hundred sixty-four".