86212808780 has 96 divisors (see below), whose sum is σ = 210322054656. Its totient is φ = 29072710656.

The previous prime is 86212808761. The next prime is 86212808789. The reversal of 86212808780 is 8780821268.

It is not an unprimeable number, because it can be changed into a prime (86212808789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6399812 + ... + 6413268.

It is an arithmetic number, because the mean of its divisors is an integer number (2190854736).

Almost surely, 2^86212808780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86212808780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105161027328).

86212808780 is an abundant number, since it is smaller than the sum of its proper divisors (124109245876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86212808780 is a wasteful number, since it uses less digits than its factorization.

86212808780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14223 (or 14221 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 50.

The spelling of 86212808780 in words is "eighty-six billion, two hundred twelve million, eight hundred eight thousand, seven hundred eighty".