81795057101 has 8 divisors (see below), whose sum is σ = 81976032384. Its totient is φ = 81614141280.

The previous prime is 81795057077. The next prime is 81795057107. The reversal of 81795057101 is 10175059718.

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

It is a cyclic number.

It is not a de Polignac number, because 81795057101 - 2¹⁸ = 81794794957 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 (81795057107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3795980 + ... + 3817466.

It is an arithmetic number, because the mean of its divisors is an integer number (10247004048).

Almost surely, 2^81795057101 is an apocalyptic number.

It is an amenable number.

81795057101 is a deficient number, since it is larger than the sum of its proper divisors (180975283).

81795057101 is a wasteful number, since it uses less digits than its factorization.

81795057101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29731.

The product of its (nonzero) digits is 88200, while the sum is 44.

The spelling of 81795057101 in words is "eighty-one billion, seven hundred ninety-five million, fifty-seven thousand, one hundred one".