421800975488 has 32 divisors (see below), whose sum is σ = 846352038000. Its totient is φ = 209383209216.

The previous prime is 421800975457. The next prime is 421800975499. The reversal of 421800975488 is 884579008124.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11835878 + ... + 11871461.

Almost surely, 2^421800975488 is an apocalyptic number.

It is an amenable number.

421800975488 is an abundant number, since it is smaller than the sum of its proper divisors (424551062512).

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

421800975488 is a wasteful number, since it uses less digits than its factorization.

421800975488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23707492 (or 23707480 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 421800975488 in words is "four hundred twenty-one billion, eight hundred million, nine hundred seventy-five thousand, four hundred eighty-eight".