81301343717711 has 8 divisors (see below), whose sum is σ = 89690788191984. Its totient is φ = 73216969951680.

The previous prime is 81301343717687. The next prime is 81301343717791. The reversal of 81301343717711 is 11771734310318.

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 81301343717711 - 2⁴² = 76903297206607 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 (81301343717791) 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, 76267676501 + ... + 76267677566.

It is an arithmetic number, because the mean of its divisors is an integer number (11211348523998).

Almost surely, 2^{81301343717711} is an apocalyptic number.

81301343717711 is a deficient number, since it is larger than the sum of its proper divisors (8389444474273).

81301343717711 is a wasteful number, since it uses less digits than its factorization.

81301343717711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152535354121.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 81301343717711 in words is "eighty-one trillion, three hundred one billion, three hundred forty-three million, seven hundred seventeen thousand, seven hundred eleven".