400112549431 has 4 divisors (see below), whose sum is σ = 457271485072. Its totient is φ = 342953613792.

The previous prime is 400112549411. The next prime is 400112549437. The reversal of 400112549431 is 134945211004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400112549431 - 2⁵ = 400112549399 is a prime.

It is a super-2 number, since 2×400112549431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400112549437) 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, 28579467810 + ... + 28579467823.

It is an arithmetic number, because the mean of its divisors is an integer number (114317871268).

Almost surely, 2^400112549431 is an apocalyptic number.

400112549431 is a deficient number, since it is larger than the sum of its proper divisors (57158935641).

400112549431 is an equidigital number, since it uses as much as digits as its factorization.

400112549431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57158935640.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 400112549431 in words is "four hundred billion, one hundred twelve million, five hundred forty-nine thousand, four hundred thirty-one".