400256136316 has 24 divisors (see below), whose sum is σ = 714697303824. Its totient is φ = 196067838720.

The previous prime is 400256136233. The next prime is 400256136323. The reversal of 400256136316 is 613631652004.

It is a super-2 number, since 2×400256136316² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1219645 + ... + 1512628.

It is an arithmetic number, because the mean of its divisors is an integer number (29779054326).

Almost surely, 2^400256136316 is an apocalyptic number.

It is an amenable number.

400256136316 is a deficient number, since it is larger than the sum of its proper divisors (314441167508).

400256136316 is a wasteful number, since it uses less digits than its factorization.

400256136316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733021 (or 2733019 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 400256136316 in words is "four hundred billion, two hundred fifty-six million, one hundred thirty-six thousand, three hundred sixteen".