421267273308 has 144 divisors (see below), whose sum is σ = 1270773504000. Its totient is φ = 120335090400.

The previous prime is 421267273291. The next prime is 421267273309. The reversal of 421267273308 is 803372762124.

421267273308 is a `hidden beast` number, since 4 + 2 + 12 + 67 + 273 + 308 = 666.

It is a super-2 number, since 2×421267273308² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421267273309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46030533 + ... + 46039683.

It is an arithmetic number, because the mean of its divisors is an integer number (8824816000).

Almost surely, 2^421267273308 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 421267273308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635386752000).

421267273308 is an abundant number, since it is smaller than the sum of its proper divisors (849506230692).

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

421267273308 is a wasteful number, since it uses less digits than its factorization.

421267273308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17877 (or 17862 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 421267273308 in words is "four hundred twenty-one billion, two hundred sixty-seven million, two hundred seventy-three thousand, three hundred eight".