400236123356152 has 64 divisors (see below), whose sum is σ = 810174336883200. Its totient is φ = 184776602025600.

The previous prime is 400236123356063. The next prime is 400236123356161. The reversal of 400236123356152 is 251653321632004.

It is a junction number, because it is equal to n+sod(n) for n = 400236123356099 and 400236123356108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163292628 + ... + 165725539.

It is an arithmetic number, because the mean of its divisors is an integer number (12658974013800).

Almost surely, 2^{400236123356152} is an apocalyptic number.

It is an amenable number.

400236123356152 is an abundant number, since it is smaller than the sum of its proper divisors (409938213527048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400236123356152 is a wasteful number, since it uses less digits than its factorization.

400236123356152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329018396 (or 329018392 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

Adding to 400236123356152 its reverse (251653321632004), we get a palindrome (651889444988156).

The spelling of 400236123356152 in words is "four hundred trillion, two hundred thirty-six billion, one hundred twenty-three million, three hundred fifty-six thousand, one hundred fifty-two".