82640465775652 has 24 divisors (see below), whose sum is σ = 153139429147320. Its totient is φ = 38886708472320.

The previous prime is 82640465775649. The next prime is 82640465775731. The reversal of 82640465775652 is 25657756404628.

It can be written as a sum of positive squares in 4 ways, for example, as 1711298283556 + 80929167492096 = 1308166^2 + 8996064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44752099 + ... + 46562122.

It is an arithmetic number, because the mean of its divisors is an integer number (6380809547805).

Almost surely, 2^{82640465775652} is an apocalyptic number.

It is an amenable number.

82640465775652 is a deficient number, since it is larger than the sum of its proper divisors (70498963371668).

82640465775652 is a wasteful number, since it uses less digits than its factorization.

82640465775652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91327551 (or 91327549 counting only the distinct ones).

The product of its (nonzero) digits is 677376000, while the sum is 67.

The spelling of 82640465775652 in words is "eighty-two trillion, six hundred forty billion, four hundred sixty-five million, seven hundred seventy-five thousand, six hundred fifty-two".