421801148432 has 20 divisors (see below), whose sum is σ = 817265088636. Its totient is φ = 210894028800.

The previous prime is 421801148383. The next prime is 421801148473. The reversal of 421801148432 is 234841108124.

It can be written as a sum of positive squares in 2 ways, for example, as 97466342416 + 324334806016 = 312196^2 + 569504^2 .

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, 145328 + ... + 929904.

Almost surely, 2^421801148432 is an apocalyptic number.

It is an amenable number.

421801148432 is a deficient number, since it is larger than the sum of its proper divisors (395463940204).

421801148432 is a wasteful number, since it uses less digits than its factorization.

421801148432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818186 (or 818180 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 421801148432 in words is "four hundred twenty-one billion, eight hundred one million, one hundred forty-eight thousand, four hundred thirty-two".