53863181435717 has 4 divisors (see below), whose sum is σ = 53962743693996. Its totient is φ = 53763619177440.

The previous prime is 53863181435573. The next prime is 53863181435719. The reversal of 53863181435717 is 71753418136835.

It is a Cunningham number, because it is equal to 7339154²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21399635448676 + 32463545987041 = 4625974^2 + 5697679^2 .

It is a cyclic number.

It is not a de Polignac number, because 53863181435717 - 2¹⁰ = 53863181434693 is a prime.

It is a super-3 number, since 3×53863181435717³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53863181435717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53863181435719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49781128328 + ... + 49781129409.

It is an arithmetic number, because the mean of its divisors is an integer number (13490685923499).

Almost surely, 2^{53863181435717} is an apocalyptic number.

It is an amenable number.

53863181435717 is a deficient number, since it is larger than the sum of its proper divisors (99562258279).

53863181435717 is an equidigital number, since it uses as much as digits as its factorization.

53863181435717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99562258278.

The product of its digits is 50803200, while the sum is 62.

The spelling of 53863181435717 in words is "fifty-three trillion, eight hundred sixty-three billion, one hundred eighty-one million, four hundred thirty-five thousand, seven hundred seventeen".