423013647451 has 4 divisors (see below), whose sum is σ = 425546663472. Its totient is φ = 420480631432.

The previous prime is 423013647379. The next prime is 423013647467. The reversal of 423013647451 is 154746310324.

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 423013647451 - 2²⁷ = 422879429723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423013647751) 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, 1266507760 + ... + 1266508093.

It is an arithmetic number, because the mean of its divisors is an integer number (106386665868).

Almost surely, 2^423013647451 is an apocalyptic number.

423013647451 is a deficient number, since it is larger than the sum of its proper divisors (2533016021).

423013647451 is a wasteful number, since it uses less digits than its factorization.

423013647451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533016020.

The product of its (nonzero) digits is 241920, while the sum is 40.

Adding to 423013647451 its reverse (154746310324), we get a palindrome (577759957775).

The spelling of 423013647451 in words is "four hundred twenty-three billion, thirteen million, six hundred forty-seven thousand, four hundred fifty-one".