421501565342 has 64 divisors (see below), whose sum is σ = 793695672000. Its totient is φ = 164923361280.

The previous prime is 421501565341. The next prime is 421501565357. The reversal of 421501565342 is 243565105124.

It is a junction number, because it is equal to n+sod(n) for n = 421501565296 and 421501565305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421501565341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132284 + ... + 927632.

It is an arithmetic number, because the mean of its divisors is an integer number (12401494875).

Almost surely, 2^421501565342 is an apocalyptic number.

421501565342 is a deficient number, since it is larger than the sum of its proper divisors (372194106658).

421501565342 is a wasteful number, since it uses less digits than its factorization.

421501565342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795501.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 421501565342 in words is "four hundred twenty-one billion, five hundred one million, five hundred sixty-five thousand, three hundred forty-two".