393140068776347 has 2 divisors, whose sum is σ = 393140068776348. Its totient is φ = 393140068776346.

The previous prime is 393140068776311. The next prime is 393140068776463. The reversal of 393140068776347 is 743677860041393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 393140068776347 - 2¹⁰ = 393140068775323 is a prime.

It is a super-2 number, since 2×393140068776347² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (393140068076347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196570034388173 + 196570034388174.

It is an arithmetic number, because the mean of its divisors is an integer number (196570034388174).

Almost surely, 2^{393140068776347} is an apocalyptic number.

393140068776347 is a deficient number, since it is larger than the sum of its proper divisors (1).

393140068776347 is an equidigital number, since it uses as much as digits as its factorization.

393140068776347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384072192, while the sum is 68.

The spelling of 393140068776347 in words is "three hundred ninety-three trillion, one hundred forty billion, sixty-eight million, seven hundred seventy-six thousand, three hundred forty-seven".