421454876343480 has 192 divisors, whose sum is σ = 1565511898728960. Its totient is φ = 96325892561664.

The previous prime is 421454876343377. The next prime is 421454876343497. The reversal of 421454876343480 is 84343678454124.

421454876343480 is a `hidden beast` number, since 4 + 2 + 1 + 4 + 5 + 48 + 76 + 3 + 43 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30781719 + ... + 42313401.

It is an arithmetic number, because the mean of its divisors is an integer number (8153707805880).

Almost surely, 2^{421454876343480} is an apocalyptic number.

421454876343480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421454876343480 is an abundant number, since it is smaller than the sum of its proper divisors (1144057022385480).

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

421454876343480 is a wasteful number, since it uses less digits than its factorization.

421454876343480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11546210 (or 11546203 counting only the distinct ones).

The product of its (nonzero) digits is 247726080, while the sum is 63.

The spelling of 421454876343480 in words is "four hundred twenty-one trillion, four hundred fifty-four billion, eight hundred seventy-six million, three hundred forty-three thousand, four hundred eighty".