2621539711056 has 320 divisors, whose sum is σ = 8004809246720. Its totient is φ = 723780126720.

The previous prime is 2621539710971. The next prime is 2621539711079. The reversal of 2621539711056 is 6501179351262.

2621539711056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 2621539710996 and 2621539711014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 539298066 + ... + 539302926.

It is an arithmetic number, because the mean of its divisors is an integer number (25015028896).

Almost surely, 2^{2621539711056} 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 2621539711056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4002404623360).

2621539711056 is an abundant number, since it is smaller than the sum of its proper divisors (5383269535664).

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

2621539711056 is a wasteful number, since it uses less digits than its factorization.

2621539711056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314 (or 5308 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 48.

The spelling of 2621539711056 in words is "two trillion, six hundred twenty-one billion, five hundred thirty-nine million, seven hundred eleven thousand, fifty-six".