100443391899918 has 32 divisors (see below), whose sum is σ = 211503132167040. Its totient is φ = 31712461901280.

The previous prime is 100443391899889. The next prime is 100443391899947. The reversal of 100443391899918 is 819998193344001.

It is an interprime number because it is at equal distance from previous prime (100443391899889) and next prime (100443391899947).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89774388 + ... + 90886343.

It is an arithmetic number, because the mean of its divisors is an integer number (6609472880220).

Almost surely, 2^{100443391899918} is an apocalyptic number.

100443391899918 is an abundant number, since it is smaller than the sum of its proper divisors (111059740267122).

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

100443391899918 is a wasteful number, since it uses less digits than its factorization.

100443391899918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180665632.

The product of its (nonzero) digits is 60466176, while the sum is 69.

The spelling of 100443391899918 in words is "one hundred trillion, four hundred forty-three billion, three hundred ninety-one million, eight hundred ninety-nine thousand, nine hundred eighteen".