999944010900 has 108 divisors (see below), whose sum is σ = 3144283474332. Its totient is φ = 265799738880.

The previous prime is 999944010853. The next prime is 999944010911. The reversal of 999944010900 is 9010449999.

999944010900 is a `hidden beast` number, since 9 + 9 + 99 + 440 + 109 + 0 + 0 = 666.

999944010900 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 134474757264 + 865469253636 = 366708^2 + 930306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1493139 + ... + 2056538.

Almost surely, 2^999944010900 is an apocalyptic number.

999944010900 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

999944010900 is an abundant number, since it is smaller than the sum of its proper divisors (2144339463432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999944010900 is a wasteful number, since it uses less digits than its factorization.

999944010900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550010 (or 3550000 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 54.

The spelling of 999944010900 in words is "nine hundred ninety-nine billion, nine hundred forty-four million, ten thousand, nine hundred".