104487725861 has 2 divisors, whose sum is σ = 104487725862. Its totient is φ = 104487725860.

The previous prime is 104487725833. The next prime is 104487725911. The reversal of 104487725861 is 168527784401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57255396961 + 47232328900 = 239281^2 + 217330^2 .

It is a cyclic number.

It is not a de Polignac number, because 104487725861 - 2¹⁰ = 104487724837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104487722861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52243862930 + 52243862931.

It is an arithmetic number, because the mean of its divisors is an integer number (52243862931).

Almost surely, 2^104487725861 is an apocalyptic number.

It is an amenable number.

104487725861 is a deficient number, since it is larger than the sum of its proper divisors (1).

104487725861 is an equidigital number, since it uses as much as digits as its factorization.

104487725861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 104487725861 in words is "one hundred four billion, four hundred eighty-seven million, seven hundred twenty-five thousand, eight hundred sixty-one".