421277232463776 has 288 divisors, whose sum is σ = 1338358396677120. Its totient is φ = 124861417574400.

The previous prime is 421277232463751. The next prime is 421277232463777. The reversal of 421277232463776 is 677364232772124.

421277232463776 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 7 + 72 + 32 + 463 + 7 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×421277232463776² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421277232463777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5242840 + ... + 29496471.

It is an arithmetic number, because the mean of its divisors is an integer number (4647077766240).

Almost surely, 2^{421277232463776} 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 421277232463776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669179198338560).

421277232463776 is an abundant number, since it is smaller than the sum of its proper divisors (917081164213344).

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

421277232463776 is a wasteful number, since it uses less digits than its factorization.

421277232463776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34739460 (or 34739449 counting only the distinct ones).

The product of its digits is 199148544, while the sum is 63.

The spelling of 421277232463776 in words is "four hundred twenty-one trillion, two hundred seventy-seven billion, two hundred thirty-two million, four hundred sixty-three thousand, seven hundred seventy-six".