86713109621 has 4 divisors (see below), whose sum is σ = 87810744000. Its totient is φ = 85615475244.

The previous prime is 86713109603. The next prime is 86713109627. The reversal of 86713109621 is 12690131768.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86713109621 - 2⁶ = 86713109557 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 (86713109627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548817071 + ... + 548817228.

It is an arithmetic number, because the mean of its divisors is an integer number (21952686000).

Almost surely, 2^86713109621 is an apocalyptic number.

It is an amenable number.

86713109621 is a deficient number, since it is larger than the sum of its proper divisors (1097634379).

86713109621 is a wasteful number, since it uses less digits than its factorization.

86713109621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097634378.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 86713109621 in words is "eighty-six billion, seven hundred thirteen million, one hundred nine thousand, six hundred twenty-one".