2168539402398 has 16 divisors (see below), whose sum is σ = 4339409336976. Its totient is φ = 722458045440.

The previous prime is 2168539402349. The next prime is 2168539402411. The reversal of 2168539402398 is 8932049358612.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97093411 + ... + 97115742.

It is an arithmetic number, because the mean of its divisors is an integer number (271213083561).

Almost surely, 2^{2168539402398} is an apocalyptic number.

2168539402398 is an abundant number, since it is smaller than the sum of its proper divisors (2170869934578).

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

2168539402398 is a wasteful number, since it uses less digits than its factorization.

2168539402398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194211019.

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 2168539402398 in words is "two trillion, one hundred sixty-eight billion, five hundred thirty-nine million, four hundred two thousand, three hundred ninety-eight".