86625523540 has 12 divisors (see below), whose sum is σ = 181913599476. Its totient is φ = 34650209408.

The previous prime is 86625523529. The next prime is 86625523547. The reversal of 86625523540 is 4532552668.

It can be written as a sum of positive squares in 2 ways, for example, as 19612882116 + 67012641424 = 140046^2 + 258868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86625523547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165638069 + ... + 2165638108.

It is an arithmetic number, because the mean of its divisors is an integer number (15159466623).

Almost surely, 2^86625523540 is an apocalyptic number.

It is an amenable number.

86625523540 is an abundant number, since it is smaller than the sum of its proper divisors (95288075936).

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

86625523540 is a wasteful number, since it uses less digits than its factorization.

86625523540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331276186 (or 4331276184 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 86625523540 in words is "eighty-six billion, six hundred twenty-five million, five hundred twenty-three thousand, five hundred forty".