400836574716379 has 2 divisors, whose sum is σ = 400836574716380. Its totient is φ = 400836574716378.

The previous prime is 400836574716377. The next prime is 400836574716451. The reversal of 400836574716379 is 973617475638004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400836574716379 - 2¹ = 400836574716377 is a prime.

Together with 400836574716377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (400836574716377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200418287358189 + 200418287358190.

It is an arithmetic number, because the mean of its divisors is an integer number (200418287358190).

Almost surely, 2^{400836574716379} is an apocalyptic number.

400836574716379 is a deficient number, since it is larger than the sum of its proper divisors (1).

400836574716379 is an equidigital number, since it uses as much as digits as its factorization.

400836574716379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640120320, while the sum is 70.

The spelling of 400836574716379 in words is "four hundred trillion, eight hundred thirty-six billion, five hundred seventy-four million, seven hundred sixteen thousand, three hundred seventy-nine".