6403473152256 has 36 divisors (see below), whose sum is σ = 17042576985392. Its totient is φ = 2134491050496.

The previous prime is 6403473152239. The next prime is 6403473152291. The reversal of 6403473152256 is 6522513743046.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4168927066 + ... + 4168928601.

Almost surely, 2^{6403473152256} is an apocalyptic number.

It is an amenable number.

6403473152256 is an abundant number, since it is smaller than the sum of its proper divisors (10639103833136).

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

6403473152256 is an equidigital number, since it uses as much as digits as its factorization.

6403473152256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337855686 (or 8337855672 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 6403473152256 in words is "six trillion, four hundred three billion, four hundred seventy-three million, one hundred fifty-two thousand, two hundred fifty-six".