53801116817 has 4 divisors (see below), whose sum is σ = 61486990656. Its totient is φ = 46115242980.

The previous prime is 53801116799. The next prime is 53801116849. The reversal of 53801116817 is 71861110835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53801116817 - 2⁸ = 53801116561 is a prime.

It is a super-2 number, since 2×53801116817² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53801116217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3842936909 + ... + 3842936922.

It is an arithmetic number, because the mean of its divisors is an integer number (15371747664).

Almost surely, 2^53801116817 is an apocalyptic number.

It is an amenable number.

53801116817 is a deficient number, since it is larger than the sum of its proper divisors (7685873839).

53801116817 is an equidigital number, since it uses as much as digits as its factorization.

53801116817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7685873838.

The product of its (nonzero) digits is 40320, while the sum is 41.

The spelling of 53801116817 in words is "fifty-three billion, eight hundred one million, one hundred sixteen thousand, eight hundred seventeen".