421060663437 has 16 divisors (see below), whose sum is σ = 562434954048. Its totient is φ = 280196867840.

The previous prime is 421060663433. The next prime is 421060663453. The reversal of 421060663437 is 734366060124.

It is a cyclic number.

It is not a de Polignac number, because 421060663437 - 2² = 421060663433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421060663433) 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, 23407987 + ... + 23425967.

It is an arithmetic number, because the mean of its divisors is an integer number (35152184628).

Almost surely, 2^421060663437 is an apocalyptic number.

It is an amenable number.

421060663437 is a deficient number, since it is larger than the sum of its proper divisors (141374290611).

421060663437 is a wasteful number, since it uses less digits than its factorization.

421060663437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31740.

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 421060663437 in words is "four hundred twenty-one billion, sixty million, six hundred sixty-three thousand, four hundred thirty-seven".