1768400975368 has 8 divisors (see below), whose sum is σ = 3315751828830. Its totient is φ = 884200487680.

The previous prime is 1768400975359. The next prime is 1768400975371. The reversal of 1768400975368 is 8635790048671.

It can be written as a sum of positive squares in only one way, i.e., 1346709188484 + 421691786884 = 1160478^2 + 649378^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110525060953 + ... + 110525060968.

Almost surely, 2^{1768400975368} is an apocalyptic number.

It is an amenable number.

1768400975368 is a deficient number, since it is larger than the sum of its proper divisors (1547350853462).

1768400975368 is a wasteful number, since it uses less digits than its factorization.

1768400975368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221050121927 (or 221050121923 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 1768400975368 in words is "one trillion, seven hundred sixty-eight billion, four hundred million, nine hundred seventy-five thousand, three hundred sixty-eight".