400413316323289 has 2 divisors, whose sum is σ = 400413316323290. Its totient is φ = 400413316323288.

The previous prime is 400413316323283. The next prime is 400413316323341. The reversal of 400413316323289 is 982323613314004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227977234177225 + 172436082146064 = 15098915^2 + 13131492^2 .

It is a cyclic number.

It is not a de Polignac number, because 400413316323289 - 2³ = 400413316323281 is a prime.

It is not a weakly prime, because it can be changed into another prime (400413316323281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200206658161644 + 200206658161645.

It is an arithmetic number, because the mean of its divisors is an integer number (200206658161645).

Almost surely, 2^{400413316323289} is an apocalyptic number.

It is an amenable number.

400413316323289 is a deficient number, since it is larger than the sum of its proper divisors (1).

400413316323289 is an equidigital number, since it uses as much as digits as its factorization.

400413316323289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 400413316323289 in words is "four hundred trillion, four hundred thirteen billion, three hundred sixteen million, three hundred twenty-three thousand, two hundred eighty-nine".