81456000126 has 16 divisors (see below), whose sum is σ = 162962058384. Its totient is φ = 27143657024.

The previous prime is 81456000113. The next prime is 81456000133. The reversal of 81456000126 is 62100065418.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2064585 + ... + 2103668.

It is an arithmetic number, because the mean of its divisors is an integer number (10185128649).

Almost surely, 2^81456000126 is an apocalyptic number.

81456000126 is an abundant number, since it is smaller than the sum of its proper divisors (81506058258).

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

81456000126 is a wasteful number, since it uses less digits than its factorization.

81456000126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171515.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 81456000126 in words is "eighty-one billion, four hundred fifty-six million, one hundred twenty-six", and thus it is an aban number.