420718775853 has 8 divisors (see below), whose sum is σ = 561032005216. Its totient is φ = 280442365200.

The previous prime is 420718775819. The next prime is 420718775857. The reversal of 420718775853 is 358577817024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420718775853 - 2¹⁴ = 420718759469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420718775793 and 420718775802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420718775857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9178003 + ... + 9223728.

It is an arithmetic number, because the mean of its divisors is an integer number (70129000652).

Almost surely, 2^420718775853 is an apocalyptic number.

It is an amenable number.

420718775853 is a deficient number, since it is larger than the sum of its proper divisors (140313229363).

420718775853 is a wasteful number, since it uses less digits than its factorization.

420718775853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18409355.

The product of its (nonzero) digits is 13171200, while the sum is 57.

The spelling of 420718775853 in words is "four hundred twenty billion, seven hundred eighteen million, seven hundred seventy-five thousand, eight hundred fifty-three".