1919149763 has 2 divisors, whose sum is σ = 1919149764. Its totient is φ = 1919149762.

The previous prime is 1919149711. The next prime is 1919149807. The reversal of 1919149763 is 3679419191.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1919149763 - 2¹⁰ = 1919148739 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1919142763) 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 as a sum of consecutive naturals, namely, 959574881 + 959574882.

It is an arithmetic number, because the mean of its divisors is an integer number (959574882).

Almost surely, 2^1919149763 is an apocalyptic number.

1919149763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1919149763 is an equidigital number, since it uses as much as digits as its factorization.

1919149763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 50.

The square root of 1919149763 is about 43808.1015680890. The cubic root of 1919149763 is about 1242.7095111239.

The spelling of 1919149763 in words is "one billion, nine hundred nineteen million, one hundred forty-nine thousand, seven hundred sixty-three".