208815799098 has 16 divisors (see below), whose sum is σ = 417639057120. Its totient is φ = 69604023216.

The previous prime is 208815799097. The next prime is 208815799133. The reversal of 208815799098 is 890997518802.

208815799098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×208815799098² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208815799097) 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 7 ways as a sum of consecutive naturals, for example, 93636 + ... + 652992.

It is an arithmetic number, because the mean of its divisors is an integer number (26102441070).

Almost surely, 2^208815799098 is an apocalyptic number.

208815799098 is an abundant number, since it is smaller than the sum of its proper divisors (208823258022).

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

208815799098 is a wasteful number, since it uses less digits than its factorization.

208815799098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621581.

The product of its (nonzero) digits is 26127360, while the sum is 66.

The spelling of 208815799098 in words is "two hundred eight billion, eight hundred fifteen million, seven hundred ninety-nine thousand, ninety-eight".