1768406603840 has 28 divisors (see below), whose sum is σ = 4211018226156. Its totient is φ = 707362641408.

The previous prime is 1768406603837. The next prime is 1768406603857. The reversal of 1768406603840 is 483066048671.

It can be written as a sum of positive squares in 2 ways, for example, as 893448410176 + 874958193664 = 945224^2 + 935392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763134999 + ... + 2763135638.

It is an arithmetic number, because the mean of its divisors is an integer number (150393508077).

Almost surely, 2^{1768406603840} is an apocalyptic number.

1768406603840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1768406603840 is an abundant number, since it is smaller than the sum of its proper divisors (2442611622316).

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

1768406603840 is an equidigital number, since it uses as much as digits as its factorization.

1768406603840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526270654 (or 5526270644 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 1768406603840 in words is "one trillion, seven hundred sixty-eight billion, four hundred six million, six hundred three thousand, eight hundred forty".