2121562530047 has 8 divisors (see below), whose sum is σ = 2161633949280. Its totient is φ = 2081492664160.

The previous prime is 2121562530041. The next prime is 2121562530091. The reversal of 2121562530047 is 7400352651212.

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-2121562530047 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 (2121562530041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2581529 + ... + 3302637.

It is an arithmetic number, because the mean of its divisors is an integer number (270204243660).

Almost surely, 2^{2121562530047} is an apocalyptic number.

2121562530047 is a deficient number, since it is larger than the sum of its proper divisors (40071419233).

2121562530047 is an equidigital number, since it uses as much as digits as its factorization.

2121562530047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776673.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 2121562530047 in words is "two trillion, one hundred twenty-one billion, five hundred sixty-two million, five hundred thirty thousand, forty-seven".