52178290817 has 2 divisors, whose sum is σ = 52178290818. Its totient is φ = 52178290816.

The previous prime is 52178290807. The next prime is 52178290831. The reversal of 52178290817 is 71809287125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50578210816 + 1600080001 = 224896^2 + 40001^2 .

It is a cyclic number.

It is not a de Polignac number, because 52178290817 - 2¹⁸ = 52178028673 is a prime.

It is not a weakly prime, because it can be changed into another prime (52178290807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26089145408 + 26089145409.

It is an arithmetic number, because the mean of its divisors is an integer number (26089145409).

Almost surely, 2^52178290817 is an apocalyptic number.

It is an amenable number.

52178290817 is a deficient number, since it is larger than the sum of its proper divisors (1).

52178290817 is an equidigital number, since it uses as much as digits as its factorization.

52178290817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 52178290817 in words is "fifty-two billion, one hundred seventy-eight million, two hundred ninety thousand, eight hundred seventeen".