421445544124 has 24 divisors (see below), whose sum is σ = 804619783296. Its totient is φ = 191556174000.

The previous prime is 421445543963. The next prime is 421445544173.

421445544124 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640039 + ... + 1119169.

It is an arithmetic number, because the mean of its divisors is an integer number (33525824304).

Almost surely, 2^421445544124 is an apocalyptic number.

421445544124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421445544124 is a deficient number, since it is larger than the sum of its proper divisors (383174239172).

421445544124 is a wasteful number, since it uses less digits than its factorization.

421445544124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499137 (or 499135 counting only the distinct ones).

The product of its digits is 409600, while the sum is 40.

It can be divided in two parts, 421445 and 544124, that added together give a palindrome (965569).

The spelling of 421445544124 in words is "four hundred twenty-one billion, four hundred forty-five million, five hundred forty-four thousand, one hundred twenty-four".