71676055322657 has 4 divisors (see below), whose sum is σ = 71749418737476. Its totient is φ = 71602691907840.

The previous prime is 71676055322581. The next prime is 71676055322699. The reversal of 71676055322657 is 75622355067617.

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 69878214143761 + 1797841178896 = 8359319^2 + 1340836^2 .

It is a cyclic number.

It is not a de Polignac number, because 71676055322657 - 2⁸ = 71676055322401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71676055322657.

It is not an unprimeable number, because it can be changed into a prime (71676055322857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36681705944 + ... + 36681707897.

It is an arithmetic number, because the mean of its divisors is an integer number (17937354684369).

Almost surely, 2^{71676055322657} is an apocalyptic number.

It is an amenable number.

71676055322657 is a deficient number, since it is larger than the sum of its proper divisors (73363414819).

71676055322657 is an equidigital number, since it uses as much as digits as its factorization.

71676055322657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73363414818.

The product of its (nonzero) digits is 111132000, while the sum is 62.

The spelling of 71676055322657 in words is "seventy-one trillion, six hundred seventy-six billion, fifty-five million, three hundred twenty-two thousand, six hundred fifty-seven".