136888903449 has 16 divisors (see below), whose sum is σ = 209340259840. Its totient is φ = 88315421040.

The previous prime is 136888903439. The next prime is 136888903469. The reversal of 136888903449 is 944309888631.

136888903449 is a `hidden beast` number, since 1 + 36 + 88 + 89 + 0 + 3 + 449 = 666.

It is not a de Polignac number, because 136888903449 - 2¹⁹ = 136888379161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136888903409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81772702 + ... + 81774375.

It is an arithmetic number, because the mean of its divisors is an integer number (13083766240).

Almost surely, 2^136888903449 is an apocalyptic number.

It is an amenable number.

136888903449 is a deficient number, since it is larger than the sum of its proper divisors (72451356391).

136888903449 is a wasteful number, since it uses less digits than its factorization.

136888903449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163547117 (or 163547111 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 136888903449 in words is "one hundred thirty-six billion, eight hundred eighty-eight million, nine hundred three thousand, four hundred forty-nine".