421853134424 has 8 divisors (see below), whose sum is σ = 790974627060. Its totient is φ = 210926567208.

The previous prime is 421853134411. The next prime is 421853134433. The reversal of 421853134424 is 424431358124.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26365820894 + ... + 26365820909.

Almost surely, 2^421853134424 is an apocalyptic number.

It is an amenable number.

421853134424 is a deficient number, since it is larger than the sum of its proper divisors (369121492636).

421853134424 is a wasteful number, since it uses less digits than its factorization.

421853134424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52731641809 (or 52731641805 counting only the distinct ones).

The product of its digits is 368640, while the sum is 41.

The spelling of 421853134424 in words is "four hundred twenty-one billion, eight hundred fifty-three million, one hundred thirty-four thousand, four hundred twenty-four".