2621012132544 has 448 divisors, whose sum is σ = 8077147330560. Its totient is φ = 743151697920.

The previous prime is 2621012132509. The next prime is 2621012132567. The reversal of 2621012132544 is 4452312101262.

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, 713587092 + ... + 713590764.

It is an arithmetic number, because the mean of its divisors is an integer number (18029346720).

Almost surely, 2^{2621012132544} is an apocalyptic number.

2621012132544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2621012132544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4038573665280).

2621012132544 is an abundant number, since it is smaller than the sum of its proper divisors (5456135198016).

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

2621012132544 is a wasteful number, since it uses less digits than its factorization.

2621012132544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128 (or 4118 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 2621012132544 in words is "two trillion, six hundred twenty-one billion, twelve million, one hundred thirty-two thousand, five hundred forty-four".