472687381649 has 32 divisors (see below), whose sum is σ = 585100984320. Its totient is φ = 372677614848.

The previous prime is 472687381637. The next prime is 472687381687. The reversal of 472687381649 is 946183786274.

It is a de Polignac number, because none of the positive numbers 2^k-472687381649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (472687381619) 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, 779162 + ... + 1245980.

It is an arithmetic number, because the mean of its divisors is an integer number (18284405760).

Almost surely, 2^472687381649 is an apocalyptic number.

It is an amenable number.

472687381649 is a deficient number, since it is larger than the sum of its proper divisors (112413602671).

472687381649 is a wasteful number, since it uses less digits than its factorization.

472687381649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467037.

The product of its digits is 97542144, while the sum is 65.

The spelling of 472687381649 in words is "four hundred seventy-two billion, six hundred eighty-seven million, three hundred eighty-one thousand, six hundred forty-nine".