100444419985 has 32 divisors (see below), whose sum is σ = 154798640640. Its totient is φ = 60813739008.

The previous prime is 100444419967. The next prime is 100444419991. The reversal of 100444419985 is 589914444001.

It is a cyclic number.

It is not a de Polignac number, because 100444419985 - 2⁹ = 100444419473 is a prime.

It is a super-2 number, since 2×100444419985² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4788600 + ... + 4809529.

It is an arithmetic number, because the mean of its divisors is an integer number (4837457520).

Almost surely, 2^100444419985 is an apocalyptic number.

It is an amenable number.

100444419985 is a deficient number, since it is larger than the sum of its proper divisors (54354220655).

100444419985 is a wasteful number, since it uses less digits than its factorization.

100444419985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9598177.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 100444419985 in words is "one hundred billion, four hundred forty-four million, four hundred nineteen thousand, nine hundred eighty-five".