82027552765 has 4 divisors (see below), whose sum is σ = 98433063324. Its totient is φ = 65622042208.

The previous prime is 82027552753. The next prime is 82027552769. The reversal of 82027552765 is 56725572028.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39402647001 + 42624905764 = 198501^2 + 206458^2 .

It is a cyclic number.

It is not a de Polignac number, because 82027552765 - 2⁷ = 82027552637 is a prime.

It is a super-2 number, since 2×82027552765² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82027552769) 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, 8202755272 + ... + 8202755281.

It is an arithmetic number, because the mean of its divisors is an integer number (24608265831).

Almost surely, 2^82027552765 is an apocalyptic number.

It is an amenable number.

82027552765 is a deficient number, since it is larger than the sum of its proper divisors (16405510559).

82027552765 is a wasteful number, since it uses less digits than its factorization.

82027552765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16405510558.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 82027552765 in words is "eighty-two billion, twenty-seven million, five hundred fifty-two thousand, seven hundred sixty-five".