1916163798 has 16 divisors (see below), whose sum is σ = 3832878960. Its totient is φ = 638629376.

The previous prime is 1916163793. The next prime is 1916163803. The reversal of 1916163798 is 8973616191.

It is an interprime number because it is at equal distance from previous prime (1916163793) and next prime (1916163803).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1916163798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916163793) 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 7 ways as a sum of consecutive naturals, for example, 32518 + ... + 69926.

It is an arithmetic number, because the mean of its divisors is an integer number (239554935).

Almost surely, 2^1916163798 is an apocalyptic number.

1916163798 is an abundant number, since it is smaller than the sum of its proper divisors (1916715162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1916163798 is a wasteful number, since it uses less digits than its factorization.

1916163798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45951.

The product of its digits is 489888, while the sum is 51.

The square root of 1916163798 is about 43774.0082469038. The cubic root of 1916163798 is about 1242.0646746617.

The spelling of 1916163798 in words is "one billion, nine hundred sixteen million, one hundred sixty-three thousand, seven hundred ninety-eight".