103439631449 has 32 divisors (see below), whose sum is σ = 130521464832. Its totient is φ = 79634016000.

The previous prime is 103439631431. The next prime is 103439631571. The reversal of 103439631449 is 944136934301.

It is not a de Polignac number, because 103439631449 - 2⁸ = 103439631193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103439631409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2334794 + ... + 2378684.

It is an arithmetic number, because the mean of its divisors is an integer number (4078795776).

Almost surely, 2^103439631449 is an apocalyptic number.

It is an amenable number.

103439631449 is a deficient number, since it is larger than the sum of its proper divisors (27081833383).

103439631449 is a wasteful number, since it uses less digits than its factorization.

103439631449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44277.

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 103439631449 in words is "one hundred three billion, four hundred thirty-nine million, six hundred thirty-one thousand, four hundred forty-nine".