86802681492 has 72 divisors (see below), whose sum is σ = 223167246120. Its totient is φ = 28443571200.

The previous prime is 86802681481. The next prime is 86802681527. The reversal of 86802681492 is 29418620868.

It can be written as a sum of positive squares in 4 ways, for example, as 44569965456 + 42232716036 = 211116^2 + 205506^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 475992 + ... + 632592.

It is an arithmetic number, because the mean of its divisors is an integer number (3099545085).

Almost surely, 2^86802681492 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 86802681492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111583623060).

86802681492 is an abundant number, since it is smaller than the sum of its proper divisors (136364564628).

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

86802681492 is a wasteful number, since it uses less digits than its factorization.

86802681492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156873 (or 156868 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 86802681492 in words is "eighty-six billion, eight hundred two million, six hundred eighty-one thousand, four hundred ninety-two".