2581681494008 has 16 divisors (see below), whose sum is σ = 4841058836880. Its totient is φ = 1290732470848.

The previous prime is 2581681493977. The next prime is 2581681494061. The reversal of 2581681494008 is 8004941861852.

2581681494008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13433141 + ... + 13623972.

It is an arithmetic number, because the mean of its divisors is an integer number (302566177305).

Almost surely, 2^{2581681494008} is an apocalyptic number.

It is an amenable number.

2581681494008 is a deficient number, since it is larger than the sum of its proper divisors (2259377342872).

2581681494008 is a wasteful number, since it uses less digits than its factorization.

2581681494008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27069046 (or 27069042 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 56.

The spelling of 2581681494008 in words is "two trillion, five hundred eighty-one billion, six hundred eighty-one million, four hundred ninety-four thousand, eight".