421276864680 has 1024 divisors, whose sum is σ = 1797562368000. Its totient is φ = 85531852800.

The previous prime is 421276864643. The next prime is 421276864681. The reversal of 421276864680 is 86468672124.

It is a happy number.

421276864680 is a `hidden beast` number, since 421 + 27 + 6 + 86 + 46 + 80 = 666.

It is a super-2 number, since 2×421276864680² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (421276864681) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 163347631 + ... + 163350209.

It is an arithmetic number, because the mean of its divisors is an integer number (1755432000).

Almost surely, 2^421276864680 is an apocalyptic number.

421276864680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421276864680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898781184000).

421276864680 is an abundant number, since it is smaller than the sum of its proper divisors (1376285503320).

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

421276864680 is a wasteful number, since it uses less digits than its factorization.

421276864680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

It can be divided in two parts, 421276 and 864680, that added together give a square (1285956 = 1134²).

The spelling of 421276864680 in words is "four hundred twenty-one billion, two hundred seventy-six million, eight hundred sixty-four thousand, six hundred eighty".