5621340536526 has 256 divisors, whose sum is σ = 13430549357568. Its totient is φ = 1559107883520.

The previous prime is 5621340536453. The next prime is 5621340536561. The reversal of 5621340536526 is 6256350431265.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8608484416 + ... + 8608485068.

It is an arithmetic number, because the mean of its divisors is an integer number (52463083428).

Almost surely, 2^{5621340536526} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5621340536526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6715274678784).

5621340536526 is an abundant number, since it is smaller than the sum of its proper divisors (7809208821042).

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

5621340536526 is a wasteful number, since it uses less digits than its factorization.

5621340536526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 5621340536526 in words is "five trillion, six hundred twenty-one billion, three hundred forty million, five hundred thirty-six thousand, five hundred twenty-six".