400145640911 has 2 divisors, whose sum is σ = 400145640912. Its totient is φ = 400145640910.

The previous prime is 400145640907. The next prime is 400145640989. The reversal of 400145640911 is 119046541004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400145640911 - 2² = 400145640907 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400145640211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200072820455 + 200072820456.

It is an arithmetic number, because the mean of its divisors is an integer number (200072820456).

Almost surely, 2^400145640911 is an apocalyptic number.

400145640911 is a deficient number, since it is larger than the sum of its proper divisors (1).

400145640911 is an equidigital number, since it uses as much as digits as its factorization.

400145640911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 400145640911 in words is "four hundred billion, one hundred forty-five million, six hundred forty thousand, nine hundred eleven".