1791196816 has 20 divisors (see below), whose sum is σ = 3471773824. Its totient is φ = 895255200.

The previous prime is 1791196793. The next prime is 1791196817. The reversal of 1791196816 is 6186911971.

It is a self number, because there is not a number n which added to its sum of digits gives 1791196816.

It is not an unprimeable number, because it can be changed into a prime (1791196817) 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, 24601 + ... + 64711.

Almost surely, 2^1791196816 is an apocalyptic number.

1791196816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1791196816 is a deficient number, since it is larger than the sum of its proper divisors (1680577008).

1791196816 is a wasteful number, since it uses less digits than its factorization.

1791196816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42910 (or 42904 counting only the distinct ones).

The product of its digits is 163296, while the sum is 49.

The square root of 1791196816 is about 42322.5331945053. The cubic root of 1791196816 is about 1214.4540929058.

The spelling of 1791196816 in words is "one billion, seven hundred ninety-one million, one hundred ninety-six thousand, eight hundred sixteen".