400153310864 has 20 divisors (see below), whose sum is σ = 775321695804. Its totient is φ = 200070292608.

The previous prime is 400153310863. The next prime is 400153310873. The reversal of 400153310864 is 468013351004.

It can be written as a sum of positive squares in 2 ways, for example, as 393244376464 + 6908934400 = 627092^2 + 83120^2 .

It is not an unprimeable number, because it can be changed into a prime (400153310863) 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 3 ways as a sum of consecutive naturals, for example, 143474 + ... + 906030.

Almost surely, 2^400153310864 is an apocalyptic number.

It is an amenable number.

400153310864 is a deficient number, since it is larger than the sum of its proper divisors (375168384940).

400153310864 is a wasteful number, since it uses less digits than its factorization.

400153310864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795362 (or 795356 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 400153310864 its reverse (468013351004), we get a palindrome (868166661868).

The spelling of 400153310864 in words is "four hundred billion, one hundred fifty-three million, three hundred ten thousand, eight hundred sixty-four".