86745913026 has 32 divisors (see below), whose sum is σ = 175380771456. Its totient is φ = 28601040000.

The previous prime is 86745912947. The next prime is 86745913117. The reversal of 86745913026 is 62031954768.

86745913026 is a nontrivial binomial coefficient, being equal to C(416524, 2).

It is a self number, because there is not a number n which added to its sum of digits gives 86745913026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555366 + ... + 694206.

It is an arithmetic number, because the mean of its divisors is an integer number (5480649108).

It is a 2-persistent number, because it is pandigital, and so is 2⋅86745913026 = 173491826052, but 3⋅86745913026 = 260237739078 is not.

Almost surely, 2^86745913026 is an apocalyptic number.

86745913026 is the 416523-rd triangular number and also the 208262-nd hexagonal number.

86745913026 is an abundant number, since it is smaller than the sum of its proper divisors (88634858430).

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

86745913026 is a wasteful number, since it uses less digits than its factorization.

86745913026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139978.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 86745913026 in words is "eighty-six billion, seven hundred forty-five million, nine hundred thirteen thousand, twenty-six".