53810117749397 has 2 divisors, whose sum is σ = 53810117749398. Its totient is φ = 53810117749396.

The previous prime is 53810117749391. The next prime is 53810117749511. The reversal of 53810117749397 is 79394771101835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46707301107076 + 7102816642321 = 6834274^2 + 2665111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53810117749397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53810117749391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26905058874698 + 26905058874699.

It is an arithmetic number, because the mean of its divisors is an integer number (26905058874699).

Almost surely, 2^{53810117749397} is an apocalyptic number.

It is an amenable number.

53810117749397 is a deficient number, since it is larger than the sum of its proper divisors (1).

53810117749397 is an equidigital number, since it uses as much as digits as its factorization.

53810117749397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40007520, while the sum is 65.

The spelling of 53810117749397 in words is "fifty-three trillion, eight hundred ten billion, one hundred seventeen million, seven hundred forty-nine thousand, three hundred ninety-seven".