420056507089 has 8 divisors (see below), whose sum is σ = 434560752360. Its totient is φ = 405553564416.

The previous prime is 420056507041. The next prime is 420056507111. The reversal of 420056507089 is 980705650024.

It can be written as a sum of positive squares in 4 ways, for example, as 157682056464 + 262374450625 = 397092^2 + 512225^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 420056507089 - 2⁹ = 420056506577 is a prime.

It is a super-2 number, since 2×420056507089² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420056597089) 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, 354547 + ... + 982759.

It is an arithmetic number, because the mean of its divisors is an integer number (54320094045).

Almost surely, 2^420056507089 is an apocalyptic number.

It is an amenable number.

420056507089 is a deficient number, since it is larger than the sum of its proper divisors (14504245271).

420056507089 is a wasteful number, since it uses less digits than its factorization.

420056507089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651299.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 420056507089 in words is "four hundred twenty billion, fifty-six million, five hundred seven thousand, eighty-nine".