82523999993 has 8 divisors (see below), whose sum is σ = 83098017288. Its totient is φ = 81951097984.

The previous prime is 82523999983. The next prime is 82524000019. The reversal of 82523999993 is 39999932528.

It can be written as a sum of positive squares in 4 ways, for example, as 45333648889 + 37190351104 = 212917^2 + 192848^2 .

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 82523999993 - 2⁸ = 82523999737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82523999983) 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, 130046 + ... + 426567.

It is an arithmetic number, because the mean of its divisors is an integer number (10387252161).

Almost surely, 2^82523999993 is an apocalyptic number.

It is an amenable number.

82523999993 is a deficient number, since it is larger than the sum of its proper divisors (574017295).

82523999993 is a wasteful number, since it uses less digits than its factorization.

82523999993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557643.

The product of its digits is 85030560, while the sum is 68.

The spelling of 82523999993 in words is "eighty-two billion, five hundred twenty-three million, nine hundred ninety-nine thousand, nine hundred ninety-three".