400075904117 has 4 divisors (see below), whose sum is σ = 406047186336. Its totient is φ = 394104621900.

The previous prime is 400075904077. The next prime is 400075904153. The reversal of 400075904117 is 711409570004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400075904117 - 2¹⁰ = 400075903093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400075904177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2985641009 + ... + 2985641142.

It is an arithmetic number, because the mean of its divisors is an integer number (101511796584).

Almost surely, 2^400075904117 is an apocalyptic number.

It is an amenable number.

400075904117 is a deficient number, since it is larger than the sum of its proper divisors (5971282219).

400075904117 is an equidigital number, since it uses as much as digits as its factorization.

400075904117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5971282218.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 400075904117 in words is "four hundred billion, seventy-five million, nine hundred four thousand, one hundred seventeen".