396777426239 has 2 divisors, whose sum is σ = 396777426240. Its totient is φ = 396777426238.

The previous prime is 396777426211. The next prime is 396777426271. The reversal of 396777426239 is 932624777693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396777426239 - 2³⁶ = 328057949503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396777426209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198388713119 + 198388713120.

It is an arithmetic number, because the mean of its divisors is an integer number (198388713120).

Almost surely, 2^396777426239 is an apocalyptic number.

396777426239 is a deficient number, since it is larger than the sum of its proper divisors (1).

396777426239 is an equidigital number, since it uses as much as digits as its factorization.

396777426239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144027072, while the sum is 65.

The spelling of 396777426239 in words is "three hundred ninety-six billion, seven hundred seventy-seven million, four hundred twenty-six thousand, two hundred thirty-nine".