8465886561 has 8 divisors (see below), whose sum is σ = 12314016864. Its totient is φ = 5130840320.

The previous prime is 8465886553. The next prime is 8465886617. The reversal of 8465886561 is 1656885648.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8465886561 - 2³ = 8465886553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8465886511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128270976 + ... + 128271041.

It is an arithmetic number, because the mean of its divisors is an integer number (1539252108).

Almost surely, 2^8465886561 is an apocalyptic number.

It is an amenable number.

8465886561 is a deficient number, since it is larger than the sum of its proper divisors (3848130303).

8465886561 is a wasteful number, since it uses less digits than its factorization.

8465886561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256542031.

The product of its digits is 11059200, while the sum is 57.

The square root of 8465886561 is about 92010.2524776451. The cubic root of 8465886561 is about 2038.0937082022.

The spelling of 8465886561 in words is "eight billion, four hundred sixty-five million, eight hundred eighty-six thousand, five hundred sixty-one".