100445778446 has 8 divisors (see below), whose sum is σ = 162258565224. Its totient is φ = 46359590040.

The previous prime is 100445778421. The next prime is 100445778569. The reversal of 100445778446 is 644877544001.

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

It is a junction number, because it is equal to n+sod(n) for n = 100445778394 and 100445778403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931649560 + ... + 1931649611.

It is an arithmetic number, because the mean of its divisors is an integer number (20282320653).

Almost surely, 2^100445778446 is an apocalyptic number.

100445778446 is a deficient number, since it is larger than the sum of its proper divisors (61812786778).

100445778446 is a wasteful number, since it uses less digits than its factorization.

100445778446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863299186.

The product of its (nonzero) digits is 3010560, while the sum is 50.

The spelling of 100445778446 in words is "one hundred billion, four hundred forty-five million, seven hundred seventy-eight thousand, four hundred forty-six".