82773225938 has 18 divisors (see below), whose sum is σ = 134453861199. Its totient is φ = 38200586112.

The previous prime is 82773225923. The next prime is 82773225971. The reversal of 82773225938 is 83952237728.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 78446449 + 82694779489 = 8857^2 + 287567^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=203437.

It is a super-3 number, since 3×82773225938³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5281538 + ... + 5297186.

Almost surely, 2^82773225938 is an apocalyptic number.

82773225938 is a deficient number, since it is larger than the sum of its proper divisors (51680635261).

82773225938 is an frugal number, since it uses more digits than its factorization.

82773225938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31326 (or 15664 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 56.

The spelling of 82773225938 in words is "eighty-two billion, seven hundred seventy-three million, two hundred twenty-five thousand, nine hundred thirty-eight".