100208389897 has 16 divisors (see below), whose sum is σ = 125026261632. Its totient is φ = 78027505920.

The previous prime is 100208389823. The next prime is 100208389901. The reversal of 100208389897 is 798983802001.

It is not a de Polignac number, because 100208389897 - 2¹¹ = 100208387849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100208389817) 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 15 ways as a sum of consecutive naturals, for example, 368208 + ... + 579649.

It is an arithmetic number, because the mean of its divisors is an integer number (7814141352).

Almost surely, 2^100208389897 is an apocalyptic number.

It is an amenable number.

100208389897 is a deficient number, since it is larger than the sum of its proper divisors (24817871735).

100208389897 is a wasteful number, since it uses less digits than its factorization.

100208389897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949248.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 100208389897 in words is "one hundred billion, two hundred eight million, three hundred eighty-nine thousand, eight hundred ninety-seven".