81076321183 has 8 divisors (see below), whose sum is σ = 95250503376. Its totient is φ = 68036073600.

The previous prime is 81076321141. The next prime is 81076321223. The reversal of 81076321183 is 38112367018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 81076321183 - 2¹³ = 81076312991 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 (81076321133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283483498 + ... + 283483783.

It is an arithmetic number, because the mean of its divisors is an integer number (11906312922).

Almost surely, 2^81076321183 is an apocalyptic number.

81076321183 is a deficient number, since it is larger than the sum of its proper divisors (14174182193).

81076321183 is a wasteful number, since it uses less digits than its factorization.

81076321183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566967305.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 81076321183 in words is "eighty-one billion, seventy-six million, three hundred twenty-one thousand, one hundred eighty-three".