390956400911 has 2 divisors, whose sum is σ = 390956400912. Its totient is φ = 390956400910.

The previous prime is 390956400883. The next prime is 390956400941. The reversal of 390956400911 is 119004659093.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (119004659093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390956400911 - 2¹⁰ = 390956399887 is a prime.

It is a super-3 number, since 3×390956400911³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390956400941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195478200455 + 195478200456.

It is an arithmetic number, because the mean of its divisors is an integer number (195478200456).

Almost surely, 2^390956400911 is an apocalyptic number.

390956400911 is a deficient number, since it is larger than the sum of its proper divisors (1).

390956400911 is an equidigital number, since it uses as much as digits as its factorization.

390956400911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 47.

The spelling of 390956400911 in words is "three hundred ninety billion, nine hundred fifty-six million, four hundred thousand, nine hundred eleven".