81833592141 has 60 divisors (see below), whose sum is σ = 148386582432. Its totient is φ = 44728870032.

The previous prime is 81833592133. The next prime is 81833592149. The reversal of 81833592141 is 14129533818.

81833592141 is a `hidden beast` number, since 8 + 1 + 83 + 359 + 214 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (81833592133) and next prime (81833592149).

It is not a de Polignac number, because 81833592141 - 2³ = 81833592133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81833592149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 356935 + ... + 539508.

Almost surely, 2^81833592141 is an apocalyptic number.

81833592141 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

81833592141 is a deficient number, since it is larger than the sum of its proper divisors (66552990291).

81833592141 is a wasteful number, since it uses less digits than its factorization.

81833592141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896492 (or 896476 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 81833592141 in words is "eighty-one billion, eight hundred thirty-three million, five hundred ninety-two thousand, one hundred forty-one".