861540084707 has 8 divisors (see below), whose sum is σ = 891830544240. Its totient is φ = 831288437280.

The previous prime is 861540084701. The next prime is 861540084733. The reversal of 861540084707 is 707480045168.

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 861540084707 - 2¹⁰ = 861540083683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861540084701) 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, 9657848 + ... + 9746645.

It is an arithmetic number, because the mean of its divisors is an integer number (111478818030).

Almost surely, 2^861540084707 is an apocalyptic number.

861540084707 is a deficient number, since it is larger than the sum of its proper divisors (30290459533).

861540084707 is a wasteful number, since it uses less digits than its factorization.

861540084707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19406053.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 861540084707 in words is "eight hundred sixty-one billion, five hundred forty million, eighty-four thousand, seven hundred seven".