2421056536512 has 224 divisors, whose sum is σ = 6771733309440. Its totient is φ = 762191216640.

The previous prime is 2421056536453. The next prime is 2421056536603. The reversal of 2421056536512 is 2156356501242.

It is a super-2 number, since 2×2421056536512² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 381085528 + ... + 381091880.

Almost surely, 2^{2421056536512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2421056536512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3385866654720).

2421056536512 is an abundant number, since it is smaller than the sum of its proper divisors (4350676772928).

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

2421056536512 is a wasteful number, since it uses less digits than its factorization.

2421056536512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7931 (or 7921 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 2421056536512 in words is "two trillion, four hundred twenty-one billion, fifty-six million, five hundred thirty-six thousand, five hundred twelve".