81702364924223 has 16 divisors (see below), whose sum is σ = 84028774295040. Its totient is φ = 79382190636576.

The previous prime is 81702364924183. The next prime is 81702364924273. The reversal of 81702364924223 is 32242946320718.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81702364924223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81702364924273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557915390 + ... + 558061812.

It is an arithmetic number, because the mean of its divisors is an integer number (5251798393440).

Almost surely, 2^{81702364924223} is an apocalyptic number.

81702364924223 is a deficient number, since it is larger than the sum of its proper divisors (2326409370817).

81702364924223 is a wasteful number, since it uses less digits than its factorization.

81702364924223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167606.

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 81702364924223 in words is "eighty-one trillion, seven hundred two billion, three hundred sixty-four million, nine hundred twenty-four thousand, two hundred twenty-three".