1919038514 has 4 divisors (see below), whose sum is σ = 2878557774. Its totient is φ = 959519256.

The previous prime is 1919038507. The next prime is 1919038531. The reversal of 1919038514 is 4158309191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4158309191 = 17 ⋅244606423.

It can be written as a sum of positive squares in only one way, i.e., 1150362889 + 768675625 = 33917^2 + 27725^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479759627 + ... + 479759630.

Almost surely, 2^1919038514 is an apocalyptic number.

1919038514 is a deficient number, since it is larger than the sum of its proper divisors (959519260).

1919038514 is an equidigital number, since it uses as much as digits as its factorization.

1919038514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959519259.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 1919038514 is about 43806.8318187928. The cubic root of 1919038514 is about 1242.6854982573.

The spelling of 1919038514 in words is "one billion, nine hundred nineteen million, thirty-eight thousand, five hundred fourteen".