400606147047 has 32 divisors (see below), whose sum is σ = 559090180096. Its totient is φ = 254839737600.

The previous prime is 400606147043. The next prime is 400606147069. The reversal of 400606147047 is 740741606004.

It is a happy number.

It is not a de Polignac number, because 400606147047 - 2² = 400606147043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400606146996 and 400606147014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400606147043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31161873 + ... + 31174725.

It is an arithmetic number, because the mean of its divisors is an integer number (17471568128).

Almost surely, 2^400606147047 is an apocalyptic number.

400606147047 is a deficient number, since it is larger than the sum of its proper divisors (158484033049).

400606147047 is a wasteful number, since it uses less digits than its factorization.

400606147047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17551.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 400606147047 in words is "four hundred billion, six hundred six million, one hundred forty-seven thousand, forty-seven".