421325260416 has 96 divisors (see below), whose sum is σ = 1283725462500. Its totient is φ = 132180467712.

The previous prime is 421325260393. The next prime is 421325260429. The reversal of 421325260416 is 614062523124.

421325260416 is a `hidden beast` number, since 4 + 2 + 1 + 32 + 5 + 2 + 604 + 16 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 366625406016 + 54699854400 = 605496^2 + 233880^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×421325260416² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10737291 + ... + 10776458.

Almost surely, 2^421325260416 is an apocalyptic number.

It is an amenable number.

421325260416 is an abundant number, since it is smaller than the sum of its proper divisors (862400202084).

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

421325260416 is a wasteful number, since it uses less digits than its factorization.

421325260416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21513786 (or 21513771 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 421325260416 in words is "four hundred twenty-one billion, three hundred twenty-five million, two hundred sixty thousand, four hundred sixteen".