6401423201 has 4 divisors (see below), whose sum is σ = 6550293552. Its totient is φ = 6252552852.

The previous prime is 6401423183. The next prime is 6401423207. The reversal of 6401423201 is 1023241046.

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 6401423201 - 2²² = 6397228897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6401423207) 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, 74435111 + ... + 74435196.

It is an arithmetic number, because the mean of its divisors is an integer number (1637573388).

Almost surely, 2^6401423201 is an apocalyptic number.

It is an amenable number.

6401423201 is a deficient number, since it is larger than the sum of its proper divisors (148870351).

6401423201 is a wasteful number, since it uses less digits than its factorization.

6401423201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148870350.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 6401423201 is about 80008.8945117979. The cubic root of 6401423201 is about 1856.7731464507.

Adding to 6401423201 its reverse (1023241046), we get a palindrome (7424664247).

The spelling of 6401423201 in words is "six billion, four hundred one million, four hundred twenty-three thousand, two hundred one".