420996515268 has 96 divisors (see below), whose sum is σ = 1172184459264. Its totient is φ = 114984638208.

The previous prime is 420996515243. The next prime is 420996515297. The reversal of 420996515268 is 862515699024.

It is a super-2 number, since 2×420996515268² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3135571 + ... + 3267077.

It is an arithmetic number, because the mean of its divisors is an integer number (12210254784).

Almost surely, 2^420996515268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420996515268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586092229632).

420996515268 is an abundant number, since it is smaller than the sum of its proper divisors (751187943996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420996515268 is a wasteful number, since it uses less digits than its factorization.

420996515268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133201 (or 133199 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 420996515268 in words is "four hundred twenty billion, nine hundred ninety-six million, five hundred fifteen thousand, two hundred sixty-eight".