472100385721 has 16 divisors (see below), whose sum is σ = 493806284928. Its totient is φ = 450494035200.

The previous prime is 472100385719. The next prime is 472100385739. The reversal of 472100385721 is 127583001274.

It is a cyclic number.

It is not a de Polignac number, because 472100385721 - 2¹ = 472100385719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472100385751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18032881 + ... + 18059041.

It is an arithmetic number, because the mean of its divisors is an integer number (30862892808).

Almost surely, 2^472100385721 is an apocalyptic number.

It is an amenable number.

472100385721 is a deficient number, since it is larger than the sum of its proper divisors (21705899207).

472100385721 is a wasteful number, since it uses less digits than its factorization.

472100385721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28032.

The product of its (nonzero) digits is 94080, while the sum is 40.

Adding to 472100385721 its reverse (127583001274), we get a palindrome (599683386995).

The spelling of 472100385721 in words is "four hundred seventy-two billion, one hundred million, three hundred eighty-five thousand, seven hundred twenty-one".