4221800139672 has 32 divisors (see below), whose sum is σ = 11727222610800. Its totient is φ = 1407266713152.

The previous prime is 4221800139643. The next prime is 4221800139673. The reversal of 4221800139672 is 2769310081224.

4221800139672 is a `hidden beast` number, since 42 + 218 + 0 + 0 + 1 + 396 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221800139673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9772685293 + ... + 9772685724.

Almost surely, 2^{4221800139672} is an apocalyptic number.

It is an amenable number.

4221800139672 is an abundant number, since it is smaller than the sum of its proper divisors (7505422471128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221800139672 is a wasteful number, since it uses less digits than its factorization.

4221800139672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19545371032 (or 19545371022 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 4221800139672 in words is "four trillion, two hundred twenty-one billion, eight hundred million, one hundred thirty-nine thousand, six hundred seventy-two".