400127444947 has 8 divisors (see below), whose sum is σ = 402420430944. Its totient is φ = 397840768128.

The previous prime is 400127444921. The next prime is 400127444957. The reversal of 400127444947 is 749444721004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400127444947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400127444897 and 400127444906.

It is not an unprimeable number, because it can be changed into a prime (400127444957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450063 + ... + 1703800.

It is an arithmetic number, because the mean of its divisors is an integer number (50302553868).

Almost surely, 2^400127444947 is an apocalyptic number.

400127444947 is a deficient number, since it is larger than the sum of its proper divisors (2292985997).

400127444947 is a wasteful number, since it uses less digits than its factorization.

400127444947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154589.

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 400127444947 in words is "four hundred billion, one hundred twenty-seven million, four hundred forty-four thousand, nine hundred forty-seven".