472020294721 has 4 divisors (see below), whose sum is σ = 472226689792. Its totient is φ = 471813899652.

The previous prime is 472020294719. The next prime is 472020294763. The reversal of 472020294721 is 127492020274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 127492020274 = 2 ⋅63746010137.

It is a cyclic number.

It is not a de Polignac number, because 472020294721 - 2¹ = 472020294719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472020294121) 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 3 ways as a sum of consecutive naturals, for example, 103194105 + ... + 103198678.

It is an arithmetic number, because the mean of its divisors is an integer number (118056672448).

Almost surely, 2^472020294721 is an apocalyptic number.

It is an amenable number.

472020294721 is a deficient number, since it is larger than the sum of its proper divisors (206395071).

472020294721 is a wasteful number, since it uses less digits than its factorization.

472020294721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206395070.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 472020294721 in words is "four hundred seventy-two billion, twenty million, two hundred ninety-four thousand, seven hundred twenty-one".