421050644237 has 16 divisors (see below), whose sum is σ = 445811910720. Its totient is φ = 396556300800.

The previous prime is 421050644219. The next prime is 421050644293. The reversal of 421050644237 is 732446050124.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421050644237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421050644237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421050644297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2125187 + ... + 2314847.

It is an arithmetic number, because the mean of its divisors is an integer number (27863244420).

Almost surely, 2^421050644237 is an apocalyptic number.

It is an amenable number.

421050644237 is a deficient number, since it is larger than the sum of its proper divisors (24761266483).

421050644237 is a wasteful number, since it uses less digits than its factorization.

421050644237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190364.

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 421050644237 in words is "four hundred twenty-one billion, fifty million, six hundred forty-four thousand, two hundred thirty-seven".