1914772872 has 32 divisors (see below), whose sum is σ = 4854358080. Its totient is φ = 629267520.

The previous prime is 1914772813. The next prime is 1914772891. The reversal of 1914772872 is 2782774191.

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, 560143 + ... + 563550.

It is an arithmetic number, because the mean of its divisors is an integer number (151698690).

Almost surely, 2^1914772872 is an apocalyptic number.

1914772872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1914772872 is an abundant number, since it is smaller than the sum of its proper divisors (2939585208).

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

1914772872 is a wasteful number, since it uses less digits than its factorization.

1914772872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123773 (or 1123769 counting only the distinct ones).

The product of its digits is 395136, while the sum is 48.

The square root of 1914772872 is about 43758.1177840181. The cubic root of 1914772872 is about 1241.7640674030.

The spelling of 1914772872 in words is "one billion, nine hundred fourteen million, seven hundred seventy-two thousand, eight hundred seventy-two".