82390453543 has 4 divisors (see below), whose sum is σ = 83239839760. Its totient is φ = 81541067328.

The previous prime is 82390453517. The next prime is 82390453571. The reversal of 82390453543 is 34535409328.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82390453543 - 2⁵ = 82390453511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82390453493 and 82390453502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82390453843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424692963 + ... + 424693156.

It is an arithmetic number, because the mean of its divisors is an integer number (20809959940).

Almost surely, 2^82390453543 is an apocalyptic number.

82390453543 is a deficient number, since it is larger than the sum of its proper divisors (849386217).

82390453543 is an equidigital number, since it uses as much as digits as its factorization.

82390453543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849386216.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 82390453543 in words is "eighty-two billion, three hundred ninety million, four hundred fifty-three thousand, five hundred forty-three".