400626264443 has 2 divisors, whose sum is σ = 400626264444. Its totient is φ = 400626264442.

The previous prime is 400626264439. The next prime is 400626264461. The reversal of 400626264443 is 344462626004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400626264443 - 2² = 400626264439 is a prime.

It is a super-2 number, since 2×400626264443² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400626264443.

It is not a weakly prime, because it can be changed into another prime (400626260443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200313132221 + 200313132222.

It is an arithmetic number, because the mean of its divisors is an integer number (200313132222).

Almost surely, 2^400626264443 is an apocalyptic number.

400626264443 is a deficient number, since it is larger than the sum of its proper divisors (1).

400626264443 is an equidigital number, since it uses as much as digits as its factorization.

400626264443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 41.

The spelling of 400626264443 in words is "four hundred billion, six hundred twenty-six million, two hundred sixty-four thousand, four hundred forty-three".