1790661853 has 2 divisors, whose sum is σ = 1790661854. Its totient is φ = 1790661852.

The previous prime is 1790661827. The next prime is 1790661881. The reversal of 1790661853 is 3581660971.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1760389849 + 30272004 = 41957^2 + 5502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1790661853 - 2²⁵ = 1757107421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1790661823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895330926 + 895330927.

It is an arithmetic number, because the mean of its divisors is an integer number (895330927).

Almost surely, 2^1790661853 is an apocalyptic number.

It is an amenable number.

1790661853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1790661853 is an equidigital number, since it uses as much as digits as its factorization.

1790661853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1790661853 is about 42316.2126495271. The cubic root of 1790661853 is about 1214.3331769743. Note that the first 3 decimals are identical.

The spelling of 1790661853 in words is "one billion, seven hundred ninety million, six hundred sixty-one thousand, eight hundred fifty-three".