82179962381533 has 4 divisors (see below), whose sum is σ = 82181404622368. Its totient is φ = 82178520140700.

The previous prime is 82179962381527. The next prime is 82179962381581. The reversal of 82179962381533 is 33518326997128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82179962381533 - 2¹⁷ = 82179962250461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82179962381513) 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, 721034943 + ... + 721148908.

It is an arithmetic number, because the mean of its divisors is an integer number (20545351155592).

Almost surely, 2^{82179962381533} is an apocalyptic number.

It is an amenable number.

82179962381533 is a deficient number, since it is larger than the sum of its proper divisors (1442240835).

82179962381533 is a wasteful number, since it uses less digits than its factorization.

82179962381533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442240834.

The product of its digits is 117573120, while the sum is 67.

The spelling of 82179962381533 in words is "eighty-two trillion, one hundred seventy-nine billion, nine hundred sixty-two million, three hundred eighty-one thousand, five hundred thirty-three".