472650661921 has 8 divisors (see below), whose sum is σ = 501817282560. Its totient is φ = 443635556928.

The previous prime is 472650661919. The next prime is 472650661933. The reversal of 472650661921 is 129166056274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472650661921 - 2¹ = 472650661919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (472650661321) 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, 37872481 + ... + 37884958.

It is an arithmetic number, because the mean of its divisors is an integer number (62727160320).

Almost surely, 2^472650661921 is an apocalyptic number.

It is an amenable number.

472650661921 is a deficient number, since it is larger than the sum of its proper divisors (29166620639).

472650661921 is a wasteful number, since it uses less digits than its factorization.

472650661921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75757823.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 472650661921 in words is "four hundred seventy-two billion, six hundred fifty million, six hundred sixty-one thousand, nine hundred twenty-one".