30909391120404 has 72 divisors (see below), whose sum is σ = 78723979949160. Its totient is φ = 10225364078592.

The previous prime is 30909391120403. The next prime is 30909391120417. The reversal of 30909391120404 is 40402119390903.

30909391120404 is a `hidden beast` number, since 3 + 0 + 90 + 9 + 39 + 1 + 120 + 404 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1830852548100 + 29078538572304 = 1353090^2 + 5392452^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30909391120404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30909391120403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3408957 + ... + 8569700.

It is an arithmetic number, because the mean of its divisors is an integer number (1093388610405).

Almost surely, 2^{30909391120404} is an apocalyptic number.

It is an amenable number.

30909391120404 is an abundant number, since it is smaller than the sum of its proper divisors (47814588828756).

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

30909391120404 is a wasteful number, since it uses less digits than its factorization.

30909391120404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11979209 (or 11979204 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 30909391120404 in words is "thirty trillion, nine hundred nine billion, three hundred ninety-one million, one hundred twenty thousand, four hundred four".