400011215051 has 8 divisors (see below), whose sum is σ = 457183625184. Its totient is φ = 342845792640.

The previous prime is 400011215027. The next prime is 400011215063. The reversal of 400011215051 is 150512110004.

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 400011215051 - 2¹⁴ = 400011198667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400011215651) 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, 1623680 + ... + 1853741.

It is an arithmetic number, because the mean of its divisors is an integer number (57147953148).

Almost surely, 2^400011215051 is an apocalyptic number.

400011215051 is a deficient number, since it is larger than the sum of its proper divisors (57172410133).

400011215051 is a wasteful number, since it uses less digits than its factorization.

400011215051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493861.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 400011215051 its reverse (150512110004), we get a palindrome (550523325055).

The spelling of 400011215051 in words is "four hundred billion, eleven million, two hundred fifteen thousand, fifty-one".