1768081040 has 60 divisors (see below), whose sum is σ = 4518494652. Its totient is φ = 642935040.

The previous prime is 1768081033. The next prime is 1768081099. The reversal of 1768081040 is 401808671.

It can be written as a sum of positive squares in 2 ways, for example, as 1353062656 + 415018384 = 36784^2 + 20372^2 .

It is a super-2 number, since 2×1768081040² = 6252221128014963200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81647 + ... + 101006.

Almost surely, 2^1768081040 is an apocalyptic number.

1768081040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1768081040 is an abundant number, since it is smaller than the sum of its proper divisors (2750413612).

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

1768081040 is a wasteful number, since it uses less digits than its factorization.

1768081040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182688 (or 182671 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1768081040 is about 42048.5557421417. Note that the first 3 decimals coincide. The cubic root of 1768081040 is about 1209.2071941566.

The spelling of 1768081040 in words is "one billion, seven hundred sixty-eight million, eighty-one thousand, forty".