53917678805017 has 16 divisors (see below), whose sum is σ = 57122113531392. Its totient is φ = 50716894187520.

The previous prime is 53917678804973. The next prime is 53917678805071. The reversal of 53917678805017 is 71050887671935.

It is a cyclic number.

It is not a de Polignac number, because 53917678805017 - 2²³ = 53917670416409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53917678805917) 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 15 ways as a sum of consecutive naturals, for example, 380943292 + ... + 381084802.

It is an arithmetic number, because the mean of its divisors is an integer number (3570132095712).

Almost surely, 2^{53917678805017} is an apocalyptic number.

It is an amenable number.

53917678805017 is a deficient number, since it is larger than the sum of its proper divisors (3204434726375).

53917678805017 is a wasteful number, since it uses less digits than its factorization.

53917678805017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154248.

The product of its (nonzero) digits is 88905600, while the sum is 67.

The spelling of 53917678805017 in words is "fifty-three trillion, nine hundred seventeen billion, six hundred seventy-eight million, eight hundred five thousand, seventeen".