81575450341 has 12 divisors (see below), whose sum is σ = 103520609280. Its totient is φ = 63565285560.

The previous prime is 81575450339. The next prime is 81575450377. The reversal of 81575450341 is 14305457518.

It is not a de Polignac number, because 81575450341 - 2¹ = 81575450339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81575450941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75672421 + ... + 75673498.

It is an arithmetic number, because the mean of its divisors is an integer number (8626717440).

Almost surely, 2^81575450341 is an apocalyptic number.

It is an amenable number.

81575450341 is a deficient number, since it is larger than the sum of its proper divisors (21945158939).

81575450341 is a wasteful number, since it uses less digits than its factorization.

81575450341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151345944 (or 151345937 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The spelling of 81575450341 in words is "eighty-one billion, five hundred seventy-five million, four hundred fifty thousand, three hundred forty-one".