104869777349 has 4 divisors (see below), whose sum is σ = 104870661420. Its totient is φ = 104868893280.

The previous prime is 104869777303. The next prime is 104869777357. The reversal of 104869777349 is 943777968401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9090669025 + 95779108324 = 95345^2 + 309482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104869777349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104869777049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230294 + ... + 512615.

It is an arithmetic number, because the mean of its divisors is an integer number (26217665355).

Almost surely, 2^104869777349 is an apocalyptic number.

It is an amenable number.

104869777349 is a deficient number, since it is larger than the sum of its proper divisors (884071).

104869777349 is an equidigital number, since it uses as much as digits as its factorization.

104869777349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884070.

The product of its (nonzero) digits is 64012032, while the sum is 65.

The spelling of 104869777349 in words is "one hundred four billion, eight hundred sixty-nine million, seven hundred seventy-seven thousand, three hundred forty-nine".