400783726443196 has 72 divisors (see below), whose sum is σ = 756107432967600. Its totient is φ = 185233345296384.

The previous prime is 400783726443181. The next prime is 400783726443229. The reversal of 400783726443196 is 691344627387004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77758651 + ... + 82752493.

It is an arithmetic number, because the mean of its divisors is an integer number (10501492124550).

Almost surely, 2^{400783726443196} is an apocalyptic number.

It is an amenable number.

400783726443196 is a deficient number, since it is larger than the sum of its proper divisors (355323706524404).

400783726443196 is a wasteful number, since it uses less digits than its factorization.

400783726443196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994191 (or 4994100 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 64.

The spelling of 400783726443196 in words is "four hundred trillion, seven hundred eighty-three billion, seven hundred twenty-six million, four hundred forty-three thousand, one hundred ninety-six".