104049845809 has 72 divisors (see below), whose sum is σ = 135759882240. Its totient is φ = 79394515200.

The previous prime is 104049845789. The next prime is 104049845813. The reversal of 104049845809 is 908548940401.

It is not a de Polignac number, because 104049845809 - 2⁷ = 104049845681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104049845209) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 104994304 + ... + 104995294.

It is an arithmetic number, because the mean of its divisors is an integer number (1885553920).

Almost surely, 2^104049845809 is an apocalyptic number.

It is an amenable number.

104049845809 is a deficient number, since it is larger than the sum of its proper divisors (31710036431).

104049845809 is a wasteful number, since it uses less digits than its factorization.

104049845809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 104049845809 in words is "one hundred four billion, forty-nine million, eight hundred forty-five thousand, eight hundred nine".