81082325983 has 16 divisors (see below), whose sum is σ = 84984422400. Its totient is φ = 77212388704.

The previous prime is 81082325981. The next prime is 81082326011. The reversal of 81082325983 is 38952328018.

It is a cyclic number.

It is not a de Polignac number, because 81082325983 - 2¹ = 81082325981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81082325981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4951293 + ... + 4967641.

It is an arithmetic number, because the mean of its divisors is an integer number (5311526400).

Almost surely, 2^81082325983 is an apocalyptic number.

81082325983 is a deficient number, since it is larger than the sum of its proper divisors (3902096417).

81082325983 is a wasteful number, since it uses less digits than its factorization.

81082325983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17318.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 81082325983 in words is "eighty-one billion, eighty-two million, three hundred twenty-five thousand, nine hundred eighty-three".