30516106790621 has 8 divisors (see below), whose sum is σ = 30859103252160. Its totient is φ = 30173112970528.

The previous prime is 30516106790591. The next prime is 30516106790639. The reversal of 30516106790621 is 12609760161503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30516106790621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30516106790651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31123550 + ... + 32089056.

It is an arithmetic number, because the mean of its divisors is an integer number (3857387906520).

Almost surely, 2^{30516106790621} is an apocalyptic number.

It is an amenable number.

30516106790621 is a deficient number, since it is larger than the sum of its proper divisors (342996461539).

30516106790621 is an equidigital number, since it uses as much as digits as its factorization.

30516106790621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320723.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 30516106790621 in words is "thirty trillion, five hundred sixteen billion, one hundred six million, seven hundred ninety thousand, six hundred twenty-one".