2581981034024 has 16 divisors (see below), whose sum is σ = 5532816501600. Its totient is φ = 1106563300272.

The previous prime is 2581981033979. The next prime is 2581981034029. The reversal of 2581981034024 is 4204301891852.

It is a self number, because there is not a number n which added to its sum of digits gives 2581981034024.

It is not an unprimeable number, because it can be changed into a prime (2581981034029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23053402034 + ... + 23053402145.

It is an arithmetic number, because the mean of its divisors is an integer number (345801031350).

Almost surely, 2^{2581981034024} is an apocalyptic number.

It is an amenable number.

2581981034024 is an abundant number, since it is smaller than the sum of its proper divisors (2950835467576).

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

2581981034024 is a wasteful number, since it uses less digits than its factorization.

2581981034024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46106804192 (or 46106804188 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 2581981034024 in words is "two trillion, five hundred eighty-one billion, nine hundred eighty-one million, thirty-four thousand, twenty-four".