363791643993 has 6 divisors (see below), whose sum is σ = 525476819114. Its totient is φ = 242527762656.

The previous prime is 363791643983. The next prime is 363791643997. The reversal of 363791643993 is 399346197363.

363791643993 is a `hidden beast` number, since 36 + 3 + 79 + 16 + 439 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 246023936064 + 117767707929 = 496008^2 + 343173^2 .

It is not a de Polignac number, because 363791643993 - 2⁸ = 363791643737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 363791643993.

It is not an unprimeable number, because it can be changed into a prime (363791643997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20210646880 + ... + 20210646897.

Almost surely, 2^363791643993 is an apocalyptic number.

It is an amenable number.

363791643993 is a deficient number, since it is larger than the sum of its proper divisors (161685175121).

363791643993 is a wasteful number, since it uses less digits than its factorization.

363791643993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40421293783 (or 40421293780 counting only the distinct ones).

The product of its digits is 59521392, while the sum is 63.

The spelling of 363791643993 in words is "three hundred sixty-three billion, seven hundred ninety-one million, six hundred forty-three thousand, nine hundred ninety-three".