82701365277557 has 4 divisors (see below), whose sum is σ = 89063008760460. Its totient is φ = 76339721794656.

The previous prime is 82701365277491. The next prime is 82701365277571. The reversal of 82701365277557 is 75577256310728.

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 15155962880356 + 67545402397201 = 3893066^2 + 8218601^2 .

It is a cyclic number.

It is not a de Polignac number, because 82701365277557 - 2⁸ = 82701365277301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82701365277493 and 82701365277502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82701365297557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3180821741432 + ... + 3180821741457.

It is an arithmetic number, because the mean of its divisors is an integer number (22265752190115).

Almost surely, 2^{82701365277557} is an apocalyptic number.

It is an amenable number.

82701365277557 is a deficient number, since it is larger than the sum of its proper divisors (6361643482903).

82701365277557 is a wasteful number, since it uses less digits than its factorization.

82701365277557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361643482902.

The product of its (nonzero) digits is 172872000, while the sum is 65.

The spelling of 82701365277557 in words is "eighty-two trillion, seven hundred one billion, three hundred sixty-five million, two hundred seventy-seven thousand, five hundred fifty-seven".