421452363188 has 6 divisors (see below), whose sum is σ = 737541635586. Its totient is φ = 210726181592.

The previous prime is 421452363127. The next prime is 421452363223. The reversal of 421452363188 is 881363254124.

It can be written as a sum of positive squares in only one way, i.e., 245914826404 + 175537536784 = 495898^2 + 418972^2 .

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, 52681545395 + ... + 52681545402.

It is an arithmetic number, because the mean of its divisors is an integer number (122923605931).

Almost surely, 2^421452363188 is an apocalyptic number.

It is an amenable number.

421452363188 is a deficient number, since it is larger than the sum of its proper divisors (316089272398).

421452363188 is a wasteful number, since it uses less digits than its factorization.

421452363188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105363090801 (or 105363090799 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The spelling of 421452363188 in words is "four hundred twenty-one billion, four hundred fifty-two million, three hundred sixty-three thousand, one hundred eighty-eight".