1792718881 has 2 divisors, whose sum is σ = 1792718882. Its totient is φ = 1792718880.

The previous prime is 1792718849. The next prime is 1792718899. The reversal of 1792718881 is 1888172971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1764000000 + 28718881 = 42000^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 1792718881 - 2⁵ = 1792718849 is a prime.

It is a super-2 number, since 2×1792718881² = 6427681972587784322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1792718801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 896359440 + 896359441.

It is an arithmetic number, because the mean of its divisors is an integer number (896359441).

Almost surely, 2^1792718881 is an apocalyptic number.

It is an amenable number.

1792718881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1792718881 is an equidigital number, since it uses as much as digits as its factorization.

1792718881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 52.

The square root of 1792718881 is about 42340.5111093383. The cubic root of 1792718881 is about 1214.7979886221.

The spelling of 1792718881 in words is "one billion, seven hundred ninety-two million, seven hundred eighteen thousand, eight hundred eighty-one".