400865801169 has 8 divisors (see below), whose sum is σ = 552918346560. Its totient is φ = 258028561616.

The previous prime is 400865801143. The next prime is 400865801207. The reversal of 400865801169 is 961108568004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400865801169 - 2⁷ = 400865801041 is a prime.

It is a super-2 number, since 2×400865801169² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400865801069) 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 in 7 ways as a sum of consecutive naturals, for example, 2303826357 + ... + 2303826530.

It is an arithmetic number, because the mean of its divisors is an integer number (69114793320).

Almost surely, 2^400865801169 is an apocalyptic number.

It is an amenable number.

400865801169 is a deficient number, since it is larger than the sum of its proper divisors (152052545391).

400865801169 is a wasteful number, since it uses less digits than its factorization.

400865801169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607652919.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 400865801169 in words is "four hundred billion, eight hundred sixty-five million, eight hundred one thousand, one hundred sixty-nine".