81047980420301 has 16 divisors (see below), whose sum is σ = 81530027335680. Its totient is φ = 80567013139200.

The previous prime is 81047980420261. The next prime is 81047980420427. The reversal of 81047980420301 is 10302408974018.

It is a cyclic number.

It is not a de Polignac number, because 81047980420301 - 2¹⁸ = 81047980158157 is a prime.

It is a super-3 number, since 3×81047980420301³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81047989420301) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2858720276 + ... + 2858748626.

It is an arithmetic number, because the mean of its divisors is an integer number (5095626708480).

Almost surely, 2^{81047980420301} is an apocalyptic number.

It is an amenable number.

81047980420301 is a deficient number, since it is larger than the sum of its proper divisors (482046915379).

81047980420301 is a wasteful number, since it uses less digits than its factorization.

81047980420301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46796.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 81047980420301 in words is "eighty-one trillion, forty-seven billion, nine hundred eighty million, four hundred twenty thousand, three hundred one".