421354143776 has 48 divisors (see below), whose sum is σ = 850054383360. Its totient is φ = 205470712320.

The previous prime is 421354143737. The next prime is 421354143851. The reversal of 421354143776 is 677341453124.

It is a self number, because there is not a number n which added to its sum of digits gives 421354143776.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4040645 + ... + 4143611.

It is an arithmetic number, because the mean of its divisors is an integer number (17709466320).

Almost surely, 2^421354143776 is an apocalyptic number.

It is an amenable number.

421354143776 is an abundant number, since it is smaller than the sum of its proper divisors (428700239584).

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

421354143776 is a wasteful number, since it uses less digits than its factorization.

421354143776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106137 (or 106129 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 47.

The spelling of 421354143776 in words is "four hundred twenty-one billion, three hundred fifty-four million, one hundred forty-three thousand, seven hundred seventy-six".