6403123427 has 8 divisors (see below), whose sum is σ = 6507549792. Its totient is φ = 6299092800.

The previous prime is 6403123409. The next prime is 6403123453. The reversal of 6403123427 is 7243213046.

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 6403123427 - 2¹⁶ = 6403057891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6403123393 and 6403123402.

It is not an unprimeable number, because it can be changed into a prime (6403123487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66224 + ... + 131117.

It is an arithmetic number, because the mean of its divisors is an integer number (813443724).

Almost surely, 2^6403123427 is an apocalyptic number.

6403123427 is a deficient number, since it is larger than the sum of its proper divisors (104426365).

6403123427 is a wasteful number, since it uses less digits than its factorization.

6403123427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197869.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 6403123427 is about 80019.5190375448. The cubic root of 6403123427 is about 1856.9375189882.

The spelling of 6403123427 in words is "six billion, four hundred three million, one hundred twenty-three thousand, four hundred twenty-seven".