52118601173809 has 2 divisors, whose sum is σ = 52118601173810. Its totient is φ = 52118601173808.

The previous prime is 52118601173761. The next prime is 52118601173851. The reversal of 52118601173809 is 90837110681125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30714839157409 + 21403762016400 = 5542097^2 + 4626420^2 .

It is a cyclic number.

It is not a de Polignac number, because 52118601173809 - 2²³ = 52118592785201 is a prime.

It is not a weakly prime, because it can be changed into another prime (52118601177809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26059300586904 + 26059300586905.

It is an arithmetic number, because the mean of its divisors is an integer number (26059300586905).

Almost surely, 2^{52118601173809} is an apocalyptic number.

It is an amenable number.

52118601173809 is a deficient number, since it is larger than the sum of its proper divisors (1).

52118601173809 is an equidigital number, since it uses as much as digits as its factorization.

52118601173809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 52118601173809 in words is "fifty-two trillion, one hundred eighteen billion, six hundred one million, one hundred seventy-three thousand, eight hundred nine".