368994721835 has 4 divisors (see below), whose sum is σ = 442793666208. Its totient is φ = 295195777464.

The previous prime is 368994721831. The next prime is 368994721847. The reversal of 368994721835 is 538127499863.

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 368994721835 - 2² = 368994721831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368994721831) 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 3 ways as a sum of consecutive naturals, for example, 36899472179 + ... + 36899472188.

It is an arithmetic number, because the mean of its divisors is an integer number (110698416552).

Almost surely, 2^368994721835 is an apocalyptic number.

368994721835 is a deficient number, since it is larger than the sum of its proper divisors (73798944373).

368994721835 is an equidigital number, since it uses as much as digits as its factorization.

368994721835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73798944372.

The product of its digits is 78382080, while the sum is 65.

The spelling of 368994721835 in words is "three hundred sixty-eight billion, nine hundred ninety-four million, seven hundred twenty-one thousand, eight hundred thirty-five".