1791115216 has 20 divisors (see below), whose sum is σ = 3785766624. Its totient is φ = 814143200.

The previous prime is 1791115213. The next prime is 1791115253. The reversal of 1791115216 is 6125111971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1791115213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5088220 + ... + 5088571.

Almost surely, 2^1791115216 is an apocalyptic number.

1791115216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1791115216 is an abundant number, since it is smaller than the sum of its proper divisors (1994651408).

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

1791115216 is a wasteful number, since it uses less digits than its factorization.

1791115216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10176810 (or 10176804 counting only the distinct ones).

The product of its digits is 3780, while the sum is 34.

The square root of 1791115216 is about 42321.5691580546. The cubic root of 1791115216 is about 1214.4356506818.

The spelling of 1791115216 in words is "one billion, seven hundred ninety-one million, one hundred fifteen thousand, two hundred sixteen".