368643287898 has 12 divisors (see below), whose sum is σ = 798727123818. Its totient is φ = 122881095960.

The previous prime is 368643287891. The next prime is 368643287921. The reversal of 368643287898 is 898782346863.

It is a happy number.

368643287898 is a `hidden beast` number, since 36 + 8 + 6 + 432 + 8 + 78 + 98 = 666.

It can be written as a sum of positive squares in only one way, i.e., 350313648129 + 18329639769 = 591873^2 + 135387^2 .

It is not an unprimeable number, because it can be changed into a prime (368643287891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10240091313 + ... + 10240091348.

Almost surely, 2^368643287898 is an apocalyptic number.

368643287898 is an abundant number, since it is smaller than the sum of its proper divisors (430083835920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

368643287898 is a wasteful number, since it uses less digits than its factorization.

368643287898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20480182669 (or 20480182666 counting only the distinct ones).

The product of its digits is 668860416, while the sum is 72.

The spelling of 368643287898 in words is "three hundred sixty-eight billion, six hundred forty-three million, two hundred eighty-seven thousand, eight hundred ninety-eight".