82921853533 has 2 divisors, whose sum is σ = 82921853534. Its totient is φ = 82921853532.

The previous prime is 82921853519. The next prime is 82921853537. The reversal of 82921853533 is 33535812928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74715848964 + 8206004569 = 273342^2 + 90587^2 .

It is a cyclic number.

It is not a de Polignac number, because 82921853533 - 2²⁹ = 82384982621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82921853537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41460926766 + 41460926767.

It is an arithmetic number, because the mean of its divisors is an integer number (41460926767).

Almost surely, 2^82921853533 is an apocalyptic number.

It is an amenable number.

82921853533 is a deficient number, since it is larger than the sum of its proper divisors (1).

82921853533 is an equidigital number, since it uses as much as digits as its factorization.

82921853533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 49.

The spelling of 82921853533 in words is "eighty-two billion, nine hundred twenty-one million, eight hundred fifty-three thousand, five hundred thirty-three".