82563499658 has 4 divisors (see below), whose sum is σ = 123845249490. Its totient is φ = 41281749828.

The previous prime is 82563499651. The next prime is 82563499673. The reversal of 82563499658 is 85699436528.

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

It can be written as a sum of positive squares in only one way, i.e., 77853834529 + 4709665129 = 279023^2 + 68627^2 .

It is a super-2 number, since 2×82563499658² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82563499594 and 82563499603.

It is not an unprimeable number, because it can be changed into a prime (82563499651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20640874913 + ... + 20640874916.

Almost surely, 2^82563499658 is an apocalyptic number.

82563499658 is a deficient number, since it is larger than the sum of its proper divisors (41281749832).

82563499658 is a wasteful number, since it uses less digits than its factorization.

82563499658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41281749831.

The product of its digits is 111974400, while the sum is 65.

The spelling of 82563499658 in words is "eighty-two billion, five hundred sixty-three million, four hundred ninety-nine thousand, six hundred fifty-eight".