104801818157 has 2 divisors, whose sum is σ = 104801818158. Its totient is φ = 104801818156.

The previous prime is 104801818139. The next prime is 104801818181. The reversal of 104801818157 is 751818108401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104528709481 + 273108676 = 323309^2 + 16526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104801818157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104801814157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52400909078 + 52400909079.

It is an arithmetic number, because the mean of its divisors is an integer number (52400909079).

Almost surely, 2^104801818157 is an apocalyptic number.

It is an amenable number.

104801818157 is a deficient number, since it is larger than the sum of its proper divisors (1).

104801818157 is an equidigital number, since it uses as much as digits as its factorization.

104801818157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71680, while the sum is 44.

The spelling of 104801818157 in words is "one hundred four billion, eight hundred one million, eight hundred eighteen thousand, one hundred fifty-seven".