1768361844 has 24 divisors (see below), whose sum is σ = 4343345440. Its totient is φ = 558429984.

The previous prime is 1768361821. The next prime is 1768361869. The reversal of 1768361844 is 4481638671.

It is a super-2 number, since 2×1768361844² = 6254207222630160672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1768361793 and 1768361802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3877759 + ... + 3878214.

Almost surely, 2^1768361844 is an apocalyptic number.

It is an amenable number.

1768361844 is an abundant number, since it is smaller than the sum of its proper divisors (2574983596).

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

1768361844 is a wasteful number, since it uses less digits than its factorization.

1768361844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755999 (or 7755997 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 1768361844 is about 42051.8946541057. The cubic root of 1768361844 is about 1209.2712055971.

The spelling of 1768361844 in words is "one billion, seven hundred sixty-eight million, three hundred sixty-one thousand, eight hundred forty-four".