423851351953 has 4 divisors (see below), whose sum is σ = 423864744688. Its totient is φ = 423837959220.

The previous prime is 423851351947. The next prime is 423851351971. The reversal of 423851351953 is 359153158324.

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 423851351953 - 2²⁵ = 423817797521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423851351897 and 423851351906.

It is not an unprimeable number, because it can be changed into a prime (423851351983) 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, 6648783 + ... + 6712228.

It is an arithmetic number, because the mean of its divisors is an integer number (105966186172).

Almost surely, 2^423851351953 is an apocalyptic number.

It is an amenable number.

423851351953 is a deficient number, since it is larger than the sum of its proper divisors (13392735).

423851351953 is a wasteful number, since it uses less digits than its factorization.

423851351953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13392734.

The product of its digits is 1944000, while the sum is 49.

The spelling of 423851351953 in words is "four hundred twenty-three billion, eight hundred fifty-one million, three hundred fifty-one thousand, nine hundred fifty-three".