400054441121 has 8 divisors (see below), whose sum is σ = 401427092544. Its totient is φ = 398683053360.

The previous prime is 400054441117. The next prime is 400054441123. The reversal of 400054441121 is 121144450004.

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

It is a cyclic number.

It is not a de Polignac number, because 400054441121 - 2² = 400054441117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400054441123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320531 + ... + 950183.

It is an arithmetic number, because the mean of its divisors is an integer number (50178386568).

Almost surely, 2^400054441121 is an apocalyptic number.

It is an amenable number.

400054441121 is a deficient number, since it is larger than the sum of its proper divisors (1372651423).

400054441121 is a wasteful number, since it uses less digits than its factorization.

400054441121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631831.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 400054441121 its reverse (121144450004), we get a palindrome (521198891125).

The spelling of 400054441121 in words is "four hundred billion, fifty-four million, four hundred forty-one thousand, one hundred twenty-one".