84711725661 has 8 divisors (see below), whose sum is σ = 117859792320. Its totient is φ = 54019071392.

The previous prime is 84711725639. The next prime is 84711725669. The reversal of 84711725661 is 16652711748.

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 84711725661 - 2⁵ = 84711725629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84711725661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84711725669) 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, 613853016 + ... + 613853153.

It is an arithmetic number, because the mean of its divisors is an integer number (14732474040).

Almost surely, 2^84711725661 is an apocalyptic number.

It is an amenable number.

84711725661 is a deficient number, since it is larger than the sum of its proper divisors (33148066659).

84711725661 is a wasteful number, since it uses less digits than its factorization.

84711725661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227706195.

The product of its digits is 564480, while the sum is 48.

The spelling of 84711725661 in words is "eighty-four billion, seven hundred eleven million, seven hundred twenty-five thousand, six hundred sixty-one".