768868779393 has 288 divisors, whose sum is σ = 1404118410240. Its totient is φ = 417475555200.

The previous prime is 768868779383. The next prime is 768868779463. The reversal of 768868779393 is 393977868867.

768868779393 is a `hidden beast` number, since 7 + 6 + 8 + 86 + 87 + 79 + 393 = 666.

It is not a de Polignac number, because 768868779393 - 2⁴ = 768868779377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (768868779373) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2322866238 + ... + 2322866568.

Almost surely, 2^768868779393 is an apocalyptic number.

It is an amenable number.

768868779393 is a deficient number, since it is larger than the sum of its proper divisors (635249630847).

768868779393 is a wasteful number, since it uses less digits than its factorization.

768868779393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 520 counting only the distinct ones).

The product of its digits is 4608866304, while the sum is 81.

The spelling of 768868779393 in words is "seven hundred sixty-eight billion, eight hundred sixty-eight million, seven hundred seventy-nine thousand, three hundred ninety-three".