400194740471 has 2 divisors, whose sum is σ = 400194740472. Its totient is φ = 400194740470.

The previous prime is 400194740443. The next prime is 400194740483. The reversal of 400194740471 is 174047491004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400194740471 - 2¹⁰ = 400194739447 is a prime.

It is a super-3 number, since 3×400194740471³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400194740401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200097370235 + 200097370236.

It is an arithmetic number, because the mean of its divisors is an integer number (200097370236).

Almost surely, 2^400194740471 is an apocalyptic number.

400194740471 is a deficient number, since it is larger than the sum of its proper divisors (1).

400194740471 is an equidigital number, since it uses as much as digits as its factorization.

400194740471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 400194740471 in words is "four hundred billion, one hundred ninety-four million, seven hundred forty thousand, four hundred seventy-one".