472720655991 has 8 divisors (see below), whose sum is σ = 631547280000. Its totient is φ = 314520567992.

The previous prime is 472720655983. The next prime is 472720656019. The reversal of 472720655991 is 199556027274.

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 472720655991 - 2³ = 472720655983 is a prime.

It is a super-2 number, since 2×472720655991² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472720655941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156632241 + ... + 156635258.

It is an arithmetic number, because the mean of its divisors is an integer number (78943410000).

Almost surely, 2^472720655991 is an apocalyptic number.

472720655991 is a deficient number, since it is larger than the sum of its proper divisors (158826624009).

472720655991 is a wasteful number, since it uses less digits than its factorization.

472720655991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313268005.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 472720655991 in words is "four hundred seventy-two billion, seven hundred twenty million, six hundred fifty-five thousand, nine hundred ninety-one".