2581026928746 has 192 divisors, whose sum is σ = 6101618979456. Its totient is φ = 725682585600.

The previous prime is 2581026928721. The next prime is 2581026928763. The reversal of 2581026928746 is 6478296201852.

It is a super-2 number, since 2×2581026928746² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2581026928746.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2365743661 + ... + 2365744751.

It is an arithmetic number, because the mean of its divisors is an integer number (31779265518).

Almost surely, 2^{2581026928746} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2581026928746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3050809489728).

2581026928746 is an abundant number, since it is smaller than the sum of its proper divisors (3520592050710).

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

2581026928746 is a wasteful number, since it uses less digits than its factorization.

2581026928746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 2581026928746 in words is "two trillion, five hundred eighty-one billion, twenty-six million, nine hundred twenty-eight thousand, seven hundred forty-six".