82113550238 has 24 divisors (see below), whose sum is σ = 133164803520. Its totient is φ = 37947198240.

The previous prime is 82113550213. The next prime is 82113550241. The reversal of 82113550238 is 83205531128.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1357358 + ... + 1416561.

It is an arithmetic number, because the mean of its divisors is an integer number (5548533480).

Almost surely, 2^82113550238 is an apocalyptic number.

82113550238 is a deficient number, since it is larger than the sum of its proper divisors (51051253282).

82113550238 is a wasteful number, since it uses less digits than its factorization.

82113550238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774000 (or 2773981 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 82113550238 in words is "eighty-two billion, one hundred thirteen million, five hundred fifty thousand, two hundred thirty-eight".