36391988054 has 4 divisors (see below), whose sum is σ = 54587982084. Its totient is φ = 18195994026.

The previous prime is 36391987997. The next prime is 36391988057. The reversal of 36391988054 is 45088919363.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36391988057) 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 as a sum of consecutive naturals, namely, 9097997012 + ... + 9097997015.

It is an arithmetic number, because the mean of its divisors is an integer number (13646995521).

Almost surely, 2^36391988054 is an apocalyptic number.

36391988054 is a deficient number, since it is larger than the sum of its proper divisors (18195994030).

36391988054 is a wasteful number, since it uses less digits than its factorization.

36391988054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18195994029.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 36391988054 in words is "thirty-six billion, three hundred ninety-one million, nine hundred eighty-eight thousand, fifty-four".