82101982543 has 8 divisors (see below), whose sum is σ = 94132546560. Its totient is φ = 70146845880.

The previous prime is 82101982541. The next prime is 82101982559. The reversal of 82101982543 is 34528910128.

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 82101982543 - 2¹ = 82101982541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82101982543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82101982541) 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, 18854503 + ... + 18858856.

It is an arithmetic number, because the mean of its divisors is an integer number (11766568320).

Almost surely, 2^82101982543 is an apocalyptic number.

82101982543 is a deficient number, since it is larger than the sum of its proper divisors (12030564017).

82101982543 is a wasteful number, since it uses less digits than its factorization.

82101982543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37713677.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 82101982543 in words is "eighty-two billion, one hundred one million, nine hundred eighty-two thousand, five hundred forty-three".