400324023079 has 2 divisors, whose sum is σ = 400324023080. Its totient is φ = 400324023078.

The previous prime is 400324023041. The next prime is 400324023137. The reversal of 400324023079 is 970320423004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400324023079 - 2²³ = 400315634471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400324023019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200162011539 + 200162011540.

It is an arithmetic number, because the mean of its divisors is an integer number (200162011540).

Almost surely, 2^400324023079 is an apocalyptic number.

400324023079 is a deficient number, since it is larger than the sum of its proper divisors (1).

400324023079 is an equidigital number, since it uses as much as digits as its factorization.

400324023079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 400324023079 in words is "four hundred billion, three hundred twenty-four million, twenty-three thousand, seventy-nine".