421522461486 has 240 divisors, whose sum is σ = 1127622090672. Its totient is φ = 117279187200.

The previous prime is 421522461469. The next prime is 421522461491. The reversal of 421522461486 is 684164225124.

421522461486 is a `hidden beast` number, since 4 + 2 + 1 + 5 + 2 + 24 + 614 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 263945640 + ... + 263947236.

Almost surely, 2^421522461486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421522461486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563811045336).

421522461486 is an abundant number, since it is smaller than the sum of its proper divisors (706099629186).

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

421522461486 is a wasteful number, since it uses less digits than its factorization.

421522461486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477 (or 2461 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The spelling of 421522461486 in words is "four hundred twenty-one billion, five hundred twenty-two million, four hundred sixty-one thousand, four hundred eighty-six".