421124623652 has 6 divisors (see below), whose sum is σ = 736968091398. Its totient is φ = 210562311824.

The previous prime is 421124623651. The next prime is 421124623753. The reversal of 421124623652 is 256326421124.

It can be written as a sum of positive squares in only one way, i.e., 346515886336 + 74608737316 = 588656^2 + 273146^2 .

It is not an unprimeable number, because it can be changed into a prime (421124623651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52640577953 + ... + 52640577960.

It is an arithmetic number, because the mean of its divisors is an integer number (122828015233).

Almost surely, 2^421124623652 is an apocalyptic number.

It is an amenable number.

421124623652 is a deficient number, since it is larger than the sum of its proper divisors (315843467746).

421124623652 is a wasteful number, since it uses less digits than its factorization.

421124623652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105281155917 (or 105281155915 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The spelling of 421124623652 in words is "four hundred twenty-one billion, one hundred twenty-four million, six hundred twenty-three thousand, six hundred fifty-two".