104431554881 has 2 divisors, whose sum is σ = 104431554882. Its totient is φ = 104431554880.

The previous prime is 104431554853. The next prime is 104431554911. The reversal of 104431554881 is 188455134401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104318664256 + 112890625 = 322984^2 + 10625^2 .

It is a cyclic number.

It is not a de Polignac number, because 104431554881 - 2²² = 104427360577 is a prime.

It is a super-2 number, since 2×104431554881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (104431554181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52215777440 + 52215777441.

It is an arithmetic number, because the mean of its divisors is an integer number (52215777441).

Almost surely, 2^104431554881 is an apocalyptic number.

It is an amenable number.

104431554881 is a deficient number, since it is larger than the sum of its proper divisors (1).

104431554881 is an equidigital number, since it uses as much as digits as its factorization.

104431554881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307200, while the sum is 44.

The spelling of 104431554881 in words is "one hundred four billion, four hundred thirty-one million, five hundred fifty-four thousand, eight hundred eighty-one".