100421745858442 has 8 divisors (see below), whose sum is σ = 150683559824196. Its totient is φ = 50193892583712.

The previous prime is 100421745858353. The next prime is 100421745858487. The reversal of 100421745858442 is 244858547124001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75725308716841 + 24696437141601 = 8702029^2 + 4969551^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8490165363 + ... + 8490177190.

Almost surely, 2^{100421745858442} is an apocalyptic number.

100421745858442 is a deficient number, since it is larger than the sum of its proper divisors (50261813965754).

100421745858442 is a wasteful number, since it uses less digits than its factorization.

100421745858442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16980345512.

The product of its (nonzero) digits is 11468800, while the sum is 55.

The spelling of 100421745858442 in words is "one hundred trillion, four hundred twenty-one billion, seven hundred forty-five million, eight hundred fifty-eight thousand, four hundred forty-two".