400776173156 has 12 divisors (see below), whose sum is σ = 701409896880. Its totient is φ = 200373345480.

The previous prime is 400776173107. The next prime is 400776173159. The reversal of 400776173156 is 651371677004.

It is a self number, because there is not a number n which added to its sum of digits gives 400776173156.

It is not an unprimeable number, because it can be changed into a prime (400776173159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3623990 + ... + 3732941.

It is an arithmetic number, because the mean of its divisors is an integer number (58450824740).

Almost surely, 2^400776173156 is an apocalyptic number.

It is an amenable number.

400776173156 is a deficient number, since it is larger than the sum of its proper divisors (300633723724).

400776173156 is a wasteful number, since it uses less digits than its factorization.

400776173156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370554 (or 7370552 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 400776173156 in words is "four hundred billion, seven hundred seventy-six million, one hundred seventy-three thousand, one hundred fifty-six".