81314602343 has 8 divisors (see below), whose sum is σ = 87636796128. Its totient is φ = 75002012064.

The previous prime is 81314602337. The next prime is 81314602361. The reversal of 81314602343 is 34320641318.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81314602343 is a prime.

It is a super-2 number, since 2×81314602343² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81314602543) 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 7 ways as a sum of consecutive naturals, for example, 2383280 + ... + 2417157.

It is an arithmetic number, because the mean of its divisors is an integer number (10954599516).

Almost surely, 2^81314602343 is an apocalyptic number.

81314602343 is a deficient number, since it is larger than the sum of its proper divisors (6322193785).

81314602343 is a wasteful number, since it uses less digits than its factorization.

81314602343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801753.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 81314602343 in words is "eighty-one billion, three hundred fourteen million, six hundred two thousand, three hundred forty-three".