420607868706023 has 4 divisors (see below), whose sum is σ = 420609658373448. Its totient is φ = 420606079038600.

The previous prime is 420607868706017. The next prime is 420607868706049. The reversal of 420607868706023 is 320607868706024.

It is a happy number.

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 420607868706023 - 2³⁴ = 420590688836839 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 (420607868703023) 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, 894481136 + ... + 894951237.

It is an arithmetic number, because the mean of its divisors is an integer number (105152414593362).

Almost surely, 2^{420607868706023} is an apocalyptic number.

420607868706023 is a deficient number, since it is larger than the sum of its proper divisors (1789667425).

420607868706023 is a wasteful number, since it uses less digits than its factorization.

420607868706023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789667424.

The product of its (nonzero) digits is 32514048, while the sum is 59.

Subtracting from 420607868706023 its reverse (320607868706024), we obtain a palindrome (99999999999999).

The spelling of 420607868706023 in words is "four hundred twenty trillion, six hundred seven billion, eight hundred sixty-eight million, seven hundred six thousand, twenty-three".