100817999999 has 8 divisors (see below), whose sum is σ = 102695723520. Its totient is φ = 98945908056.

The previous prime is 100817999981. The next prime is 100818000029. The reversal of 100817999999 is 999999718001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100817999999 - 2¹² = 100817995903 is a prime.

It is a Duffinian number.

100817999999 is a modest number, since divided by 999999 gives 100817 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100817998999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371749 + ... + 1443374.

It is an arithmetic number, because the mean of its divisors is an integer number (12836965440).

Almost surely, 2^100817999999 is an apocalyptic number.

100817999999 is a deficient number, since it is larger than the sum of its proper divisors (1877723521).

100817999999 is an equidigital number, since it uses as much as digits as its factorization.

100817999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815789.

The product of its (nonzero) digits is 29760696, while the sum is 71.

The spelling of 100817999999 in words is "one hundred billion, eight hundred seventeen million, nine hundred ninety-nine thousand, nine hundred ninety-nine".