104745261809 has 2 divisors, whose sum is σ = 104745261810. Its totient is φ = 104745261808.

The previous prime is 104745261787. The next prime is 104745261827. The reversal of 104745261809 is 908162547401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75471078400 + 29274183409 = 274720^2 + 171097^2 .

It is a cyclic number.

It is not a de Polignac number, because 104745261809 - 2¹² = 104745257713 is a prime.

It is not a weakly prime, because it can be changed into another prime (104745263809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52372630904 + 52372630905.

It is an arithmetic number, because the mean of its divisors is an integer number (52372630905).

Almost surely, 2^104745261809 is an apocalyptic number.

It is an amenable number.

104745261809 is a deficient number, since it is larger than the sum of its proper divisors (1).

104745261809 is an equidigital number, since it uses as much as digits as its factorization.

104745261809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 104745261809 in words is "one hundred four billion, seven hundred forty-five million, two hundred sixty-one thousand, eight hundred nine".