438473130046721 has 16 divisors (see below), whose sum is σ = 546669539230848. Its totient is φ = 341666286105600.

The previous prime is 438473130046697. The next prime is 438473130046729. The reversal of 438473130046721 is 127640031374834.

It is a cyclic number.

It is not a de Polignac number, because 438473130046721 - 2³⁸ = 438198252139777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (438473130046729) 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, 15708971 + ... + 33521903.

It is an arithmetic number, because the mean of its divisors is an integer number (34166846201928).

Almost surely, 2^{438473130046721} is an apocalyptic number.

It is an amenable number.

438473130046721 is a deficient number, since it is larger than the sum of its proper divisors (108196409184127).

438473130046721 is a wasteful number, since it uses less digits than its factorization.

438473130046721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18132632.

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 438473130046721 in words is "four hundred thirty-eight trillion, four hundred seventy-three billion, one hundred thirty million, forty-six thousand, seven hundred twenty-one".