104436909890 has 32 divisors (see below), whose sum is σ = 191132592624. Its totient is φ = 41076080640.

The previous prime is 104436909869. The next prime is 104436909917. The reversal of 104436909890 is 98909634401.

It is a Cunningham number, because it is equal to 323167²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 52606468321 + 51830441569 = 229361^2 + 227663^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1886282 + ... + 1940858.

Almost surely, 2^104436909890 is an apocalyptic number.

104436909890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

104436909890 is a deficient number, since it is larger than the sum of its proper divisors (86695682734).

104436909890 is a wasteful number, since it uses less digits than its factorization.

104436909890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57782.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 104436909890 in words is "one hundred four billion, four hundred thirty-six million, nine hundred nine thousand, eight hundred ninety".