19103676149 has 2 divisors, whose sum is σ = 19103676150. Its totient is φ = 19103676148.

The previous prime is 19103676143. The next prime is 19103676181. The reversal of 19103676149 is 94167630191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16158985924 + 2944690225 = 127118^2 + 54265^2 .

It is a cyclic number.

It is not a de Polignac number, because 19103676149 - 2⁴ = 19103676133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19103676143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9551838074 + 9551838075.

It is an arithmetic number, because the mean of its divisors is an integer number (9551838075).

Almost surely, 2^19103676149 is an apocalyptic number.

It is an amenable number.

19103676149 is a deficient number, since it is larger than the sum of its proper divisors (1).

19103676149 is an equidigital number, since it uses as much as digits as its factorization.

19103676149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 19103676149 in words is "nineteen billion, one hundred three million, six hundred seventy-six thousand, one hundred forty-nine".