100405444708 has 6 divisors (see below), whose sum is σ = 175709528246. Its totient is φ = 50202722352.

The previous prime is 100405444697. The next prime is 100405444747. The reversal of 100405444708 is 807444504001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54811237924 + 45594206784 = 234118^2 + 213528^2 .

It is a super-2 number, since 2×100405444708² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12550680585 + ... + 12550680592.

Almost surely, 2^100405444708 is an apocalyptic number.

It is an amenable number.

100405444708 is a deficient number, since it is larger than the sum of its proper divisors (75304083538).

100405444708 is a wasteful number, since it uses less digits than its factorization.

100405444708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25101361181 (or 25101361179 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 37.

Adding to 100405444708 its reverse (807444504001), we get a palindrome (907849948709).

The spelling of 100405444708 in words is "one hundred billion, four hundred five million, four hundred forty-four thousand, seven hundred eight".