81329846337348 has 96 divisors (see below), whose sum is σ = 219214101792000. Its totient is φ = 22988265371136.

The previous prime is 81329846337253. The next prime is 81329846337367. The reversal of 81329846337348 is 84373364892318.

It is a super-2 number, since 2×81329846337348² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10444923 + ... + 16485026.

It is an arithmetic number, because the mean of its divisors is an integer number (2283480227000).

Almost surely, 2^{81329846337348} is an apocalyptic number.

It is an amenable number.

81329846337348 is an abundant number, since it is smaller than the sum of its proper divisors (137884255454652).

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

81329846337348 is a wasteful number, since it uses less digits than its factorization.

81329846337348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26930349 (or 26930347 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 69.

The spelling of 81329846337348 in words is "eighty-one trillion, three hundred twenty-nine billion, eight hundred forty-six million, three hundred thirty-seven thousand, three hundred forty-eight".