13532766786 has 144 divisors (see below), whose sum is σ = 37328260320. Its totient is φ = 3503727360.

The previous prime is 13532766773. The next prime is 13532766817. The reversal of 13532766786 is 68766723531.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3267505 + ... + 3271643.

It is an arithmetic number, because the mean of its divisors is an integer number (259224030).

Almost surely, 2^13532766786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13532766786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18664130160).

13532766786 is an abundant number, since it is smaller than the sum of its proper divisors (23795493534).

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

13532766786 is a wasteful number, since it uses less digits than its factorization.

13532766786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509 (or 4499 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 13532766786 in words is "thirteen billion, five hundred thirty-two million, seven hundred sixty-six thousand, seven hundred eighty-six".