30811916544 has 36 divisors (see below), whose sum is σ = 82004634096. Its totient is φ = 10270638592.

The previous prime is 30811916533. The next prime is 30811916573. The reversal of 30811916544 is 44561911803.

It is a super-2 number, since 2×30811916544² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30811916496 and 30811916505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20059074 + ... + 20060609.

Almost surely, 2^30811916544 is an apocalyptic number.

It is an amenable number.

30811916544 is an abundant number, since it is smaller than the sum of its proper divisors (51192717552).

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

30811916544 is an equidigital number, since it uses as much as digits as its factorization.

30811916544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40119702 (or 40119688 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 30811916544 in words is "thirty billion, eight hundred eleven million, nine hundred sixteen thousand, five hundred forty-four".