1916473799 has 8 divisors (see below), whose sum is σ = 1956169440. Its totient is φ = 1876909216.

The previous prime is 1916473777. The next prime is 1916473807. The reversal of 1916473799 is 9973746191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1916473799 - 2²⁰ = 1915425223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916473099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939 + ... + 61980.

It is an arithmetic number, because the mean of its divisors is an integer number (244521180).

Almost surely, 2^1916473799 is an apocalyptic number.

1916473799 is a deficient number, since it is larger than the sum of its proper divisors (39695641).

1916473799 is an equidigital number, since it uses as much as digits as its factorization.

1916473799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65529.

The product of its digits is 2571912, while the sum is 56.

The square root of 1916473799 is about 43777.5490291542. The cubic root of 1916473799 is about 1242.1316523264.

The spelling of 1916473799 in words is "one billion, nine hundred sixteen million, four hundred seventy-three thousand, seven hundred ninety-nine".