400100000001 has 16 divisors (see below), whose sum is σ = 578027128896. Its totient is φ = 244704856896.

The previous prime is 400099999969. The next prime is 400100000051. The reversal of 400100000001 is 100000001004.

It is not a de Polignac number, because 400100000001 - 2⁵ = 400099999969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400100000051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31462890 + ... + 31475603.

It is an arithmetic number, because the mean of its divisors is an integer number (36126695556).

Almost surely, 2^400100000001 is an apocalyptic number.

It is an amenable number.

400100000001 is a deficient number, since it is larger than the sum of its proper divisors (177927128895).

400100000001 is a wasteful number, since it uses less digits than its factorization.

400100000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62938672.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 400100000001 its reverse (100000001004), we get a palindrome (500100001005).

The spelling of 400100000001 in words is "four hundred billion, one hundred million, one", and thus it is an aban number.