400104406769 has 2 divisors, whose sum is σ = 400104406770. Its totient is φ = 400104406768.

The previous prime is 400104406703. The next prime is 400104406781. The reversal of 400104406769 is 967604401004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247145196769 + 152959210000 = 497137^2 + 391100^2 .

It is a cyclic number.

It is not a de Polignac number, because 400104406769 - 2¹² = 400104402673 is a prime.

It is a super-2 number, since 2×400104406769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400104406789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200052203384 + 200052203385.

It is an arithmetic number, because the mean of its divisors is an integer number (200052203385).

Almost surely, 2^400104406769 is an apocalyptic number.

It is an amenable number.

400104406769 is a deficient number, since it is larger than the sum of its proper divisors (1).

400104406769 is an equidigital number, since it uses as much as digits as its factorization.

400104406769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 400104406769 in words is "four hundred billion, one hundred four million, four hundred six thousand, seven hundred sixty-nine".