400732465841 has 2 divisors, whose sum is σ = 400732465842. Its totient is φ = 400732465840.

The previous prime is 400732465829. The next prime is 400732465843. The reversal of 400732465841 is 148564237004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225677253025 + 175055212816 = 475055^2 + 418396^2 .

It is a cyclic number.

It is not a de Polignac number, because 400732465841 - 2²⁶ = 400665356977 is a prime.

Together with 400732465843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 400732465792 and 400732465801.

It is not a weakly prime, because it can be changed into another prime (400732465843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200366232920 + 200366232921.

It is an arithmetic number, because the mean of its divisors is an integer number (200366232921).

Almost surely, 2^400732465841 is an apocalyptic number.

It is an amenable number.

400732465841 is a deficient number, since it is larger than the sum of its proper divisors (1).

400732465841 is an equidigital number, since it uses as much as digits as its factorization.

400732465841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 400732465841 in words is "four hundred billion, seven hundred thirty-two million, four hundred sixty-five thousand, eight hundred forty-one".