423823814851 has 16 divisors (see below), whose sum is σ = 438215389920. Its totient is φ = 409676958720.

The previous prime is 423823814837. The next prime is 423823814879. The reversal of 423823814851 is 158418328324.

It is a cyclic number.

It is not a de Polignac number, because 423823814851 - 2⁵ = 423823814819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423823814795 and 423823814804.

It is not an unprimeable number, because it can be changed into a prime (423823814951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12121971 + ... + 12156883.

It is an arithmetic number, because the mean of its divisors is an integer number (27388461870).

Almost surely, 2^423823814851 is an apocalyptic number.

423823814851 is a deficient number, since it is larger than the sum of its proper divisors (14391575069).

423823814851 is a wasteful number, since it uses less digits than its factorization.

423823814851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38406.

The product of its digits is 1474560, while the sum is 49.

The spelling of 423823814851 in words is "four hundred twenty-three billion, eight hundred twenty-three million, eight hundred fourteen thousand, eight hundred fifty-one".