1916319472 has 40 divisors (see below), whose sum is σ = 3745559376. Its totient is φ = 949764096.

The previous prime is 1916319413. The next prime is 1916319491. The reversal of 1916319472 is 2749136191.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932398 + ... + 934450.

Almost surely, 2^1916319472 is an apocalyptic number.

It is an amenable number.

1916319472 is a deficient number, since it is larger than the sum of its proper divisors (1829239904).

1916319472 is a wasteful number, since it uses less digits than its factorization.

1916319472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545 (or 2539 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 1916319472 is about 43775.7863664378. The cubic root of 1916319472 is about 1242.0983099108.

The spelling of 1916319472 in words is "one billion, nine hundred sixteen million, three hundred nineteen thousand, four hundred seventy-two".