49158125475817 has 2 divisors, whose sum is σ = 49158125475818. Its totient is φ = 49158125475816.

The previous prime is 49158125475799. The next prime is 49158125475847. The reversal of 49158125475817 is 71857452185194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33582071360016 + 15576054115801 = 5795004^2 + 3946651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49158125475817 is a prime.

It is not a weakly prime, because it can be changed into another prime (49158125475847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24579062737908 + 24579062737909.

It is an arithmetic number, because the mean of its divisors is an integer number (24579062737909).

Almost surely, 2^{49158125475817} is an apocalyptic number.

It is an amenable number.

49158125475817 is a deficient number, since it is larger than the sum of its proper divisors (1).

49158125475817 is an equidigital number, since it uses as much as digits as its factorization.

49158125475817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896000, while the sum is 67.

The spelling of 49158125475817 in words is "forty-nine trillion, one hundred fifty-eight billion, one hundred twenty-five million, four hundred seventy-five thousand, eight hundred seventeen".