52684178728897 has 2 divisors, whose sum is σ = 52684178728898. Its totient is φ = 52684178728896.

The previous prime is 52684178728859. The next prime is 52684178728901. The reversal of 52684178728897 is 79882787148625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46009143264016 + 6675035464881 = 6783004^2 + 2583609^2 .

It is a cyclic number.

It is not a de Polignac number, because 52684178728897 - 2²³ = 52684170340289 is a prime.

It is a super-2 number, since 2×52684178728897² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52684178728897.

It is not a weakly prime, because it can be changed into another prime (52684178738897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26342089364448 + 26342089364449.

It is an arithmetic number, because the mean of its divisors is an integer number (26342089364449).

Almost surely, 2^{52684178728897} is an apocalyptic number.

It is an amenable number.

52684178728897 is a deficient number, since it is larger than the sum of its proper divisors (1).

52684178728897 is an equidigital number, since it uses as much as digits as its factorization.

52684178728897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6069288960, while the sum is 82.

The spelling of 52684178728897 in words is "fifty-two trillion, six hundred eighty-four billion, one hundred seventy-eight million, seven hundred twenty-eight thousand, eight hundred ninety-seven".