1916727672 has 32 divisors (see below), whose sum is σ = 4792902480. Its totient is φ = 638764800.

The previous prime is 1916727671. The next prime is 1916727697. The reversal of 1916727672 is 2767276191.

It is a happy number.

It is a super-2 number, since 2×1916727672² = 7347689937221079168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916727671) 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, 180922 + ... + 191222.

Almost surely, 2^1916727672 is an apocalyptic number.

1916727672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1916727672 is an abundant number, since it is smaller than the sum of its proper divisors (2876174808).

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

1916727672 is a wasteful number, since it uses less digits than its factorization.

1916727672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18063 (or 18059 counting only the distinct ones).

The product of its digits is 444528, while the sum is 48.

The square root of 1916727672 is about 43780.4485130064. The cubic root of 1916727672 is about 1242.1864978045.

The spelling of 1916727672 in words is "one billion, nine hundred sixteen million, seven hundred twenty-seven thousand, six hundred seventy-two".