86654376512 has 84 divisors (see below), whose sum is σ = 194117114940. Its totient is φ = 38323676160.

The previous prime is 86654376511. The next prime is 86654376517. The reversal of 86654376512 is 21567345668.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68217081856 + 18437294656 = 261184^2 + 135784^2 .

It is a super-2 number, since 2×86654376512² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86654376511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135314 + ... + 437742.

It is an arithmetic number, because the mean of its divisors is an integer number (2310918035).

Almost surely, 2^86654376512 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 86654376512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97058557470).

86654376512 is an abundant number, since it is smaller than the sum of its proper divisors (107462738428).

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

86654376512 is a wasteful number, since it uses less digits than its factorization.

86654376512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302500 (or 302479 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 53.

The spelling of 86654376512 in words is "eighty-six billion, six hundred fifty-four million, three hundred seventy-six thousand, five hundred twelve".