100421745843815 has 8 divisors (see below), whose sum is σ = 131461194559248. Its totient is φ = 73033996977280.

The previous prime is 100421745843787. The next prime is 100421745843911. The reversal of 100421745843815 is 518348547124001.

It is a happy number.

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

It is not a de Polignac number, because 100421745843815 - 2⁶ = 100421745843751 is a prime.

It is a Duffinian 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, 912924962162 + ... + 912924962271.

It is an arithmetic number, because the mean of its divisors is an integer number (16432649319906).

Almost surely, 2^{100421745843815} is an apocalyptic number.

100421745843815 is a deficient number, since it is larger than the sum of its proper divisors (31039448715433).

100421745843815 is a wasteful number, since it uses less digits than its factorization.

100421745843815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825849924449.

The product of its (nonzero) digits is 4300800, while the sum is 53.

The spelling of 100421745843815 in words is "one hundred trillion, four hundred twenty-one billion, seven hundred forty-five million, eight hundred forty-three thousand, eight hundred fifteen".