86773523720 has 32 divisors (see below), whose sum is σ = 210258924120. Its totient is φ = 32039454720.

The previous prime is 86773523719. The next prime is 86773523779. The reversal of 86773523720 is 2732537768.

It can be written as a sum of positive squares in 4 ways, for example, as 38432465764 + 48341057956 = 196042^2 + 219866^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83435561 + ... + 83436600.

Almost surely, 2^86773523720 is an apocalyptic number.

It is an amenable number.

86773523720 is an abundant number, since it is smaller than the sum of its proper divisors (123485400400).

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

86773523720 is a wasteful number, since it uses less digits than its factorization.

86773523720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166872185 (or 166872181 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 86773523720 in words is "eighty-six billion, seven hundred seventy-three million, five hundred twenty-three thousand, seven hundred twenty".