1768912193938 has 16 divisors (see below), whose sum is σ = 2727083366424. Its totient is φ = 859919535360.

The previous prime is 1768912193921. The next prime is 1768912193957. The reversal of 1768912193938 is 8393912198671.

It can be written as a sum of positive squares in 4 ways, for example, as 1173025461969 + 595886731969 = 1083063^2 + 771937^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8681145 + ... + 8882572.

Almost surely, 2^{1768912193938} is an apocalyptic number.

1768912193938 is a deficient number, since it is larger than the sum of its proper divisors (958171172486).

1768912193938 is a wasteful number, since it uses less digits than its factorization.

1768912193938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17565117.

The product of its digits is 35271936, while the sum is 67.

The spelling of 1768912193938 in words is "one trillion, seven hundred sixty-eight billion, nine hundred twelve million, one hundred ninety-three thousand, nine hundred thirty-eight".