36693100991 has 4 divisors (see below), whose sum is σ = 38288453232. Its totient is φ = 35097748752.

The previous prime is 36693100981. The next prime is 36693100999. The reversal of 36693100991 is 19900139663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36693100991 - 2²² = 36688906687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36693100999) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 797676086 + ... + 797676131.

It is an arithmetic number, because the mean of its divisors is an integer number (9572113308).

Almost surely, 2^36693100991 is an apocalyptic number.

36693100991 is a deficient number, since it is larger than the sum of its proper divisors (1595352241).

36693100991 is a wasteful number, since it uses less digits than its factorization.

36693100991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595352240.

The product of its (nonzero) digits is 236196, while the sum is 47.

The spelling of 36693100991 in words is "thirty-six billion, six hundred ninety-three million, one hundred thousand, nine hundred ninety-one".