400084732647 has 12 divisors (see below), whose sum is σ = 599303879720. Its totient is φ = 266723154936.

The previous prime is 400084732637. The next prime is 400084732669. The reversal of 400084732647 is 746237480004.

It is not a de Polignac number, because 400084732647 - 2²⁶ = 400017623783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400084732637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823219372 + ... + 823219857.

Almost surely, 2^400084732647 is an apocalyptic number.

400084732647 is a deficient number, since it is larger than the sum of its proper divisors (199219147073).

400084732647 is an equidigital number, since it uses as much as digits as its factorization.

400084732647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646439244 (or 1646439232 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 400084732647 in words is "four hundred billion, eighty-four million, seven hundred thirty-two thousand, six hundred forty-seven".