8507862661 has 8 divisors (see below), whose sum is σ = 8558066880. Its totient is φ = 8457688512.

The previous prime is 8507862659. The next prime is 8507862667. The reversal of 8507862661 is 1662687058.

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 8507862661 - 2¹ = 8507862659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8507862667) 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, 829581 + ... + 839773.

It is an arithmetic number, because the mean of its divisors is an integer number (1069758360).

Almost surely, 2^8507862661 is an apocalyptic number.

It is an amenable number.

8507862661 is a deficient number, since it is larger than the sum of its proper divisors (50204219).

8507862661 is a wasteful number, since it uses less digits than its factorization.

8507862661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15035.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 8507862661 is about 92238.0759827524. The cubic root of 8507862661 is about 2041.4566250768.

The spelling of 8507862661 in words is "eight billion, five hundred seven million, eight hundred sixty-two thousand, six hundred sixty-one".