36128109493 has 24 divisors (see below), whose sum is σ = 44262971520. Its totient is φ = 29320885440.

The previous prime is 36128109469. The next prime is 36128109529. The reversal of 36128109493 is 39490182163.

It is a happy number.

It is not a de Polignac number, because 36128109493 - 2¹⁷ = 36127978421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36128109443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1845748 + ... + 1865218.

It is an arithmetic number, because the mean of its divisors is an integer number (1844290480).

Almost surely, 2^36128109493 is an apocalyptic number.

It is an amenable number.

36128109493 is a deficient number, since it is larger than the sum of its proper divisors (8134862027).

36128109493 is a wasteful number, since it uses less digits than its factorization.

36128109493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21497 (or 21490 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 36128109493 in words is "thirty-six billion, one hundred twenty-eight million, one hundred nine thousand, four hundred ninety-three".