86919786036 has 144 divisors (see below), whose sum is σ = 231520633344. Its totient is φ = 27442533888.

The previous prime is 86919786017. The next prime is 86919786089. The reversal of 86919786036 is 63068791968.

86919786036 is a `hidden beast` number, since 8 + 6 + 9 + 19 + 7 + 8 + 603 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38004885 + ... + 38007171.

It is an arithmetic number, because the mean of its divisors is an integer number (1607782176).

Almost surely, 2^86919786036 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 86919786036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115760316672).

86919786036 is an abundant number, since it is smaller than the sum of its proper divisors (144600847308).

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

86919786036 is a wasteful number, since it uses less digits than its factorization.

86919786036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 86919786036 in words is "eighty-six billion, nine hundred nineteen million, seven hundred eighty-six thousand, thirty-six".