438772273265 has 8 divisors (see below), whose sum is σ = 538771535808. Its totient is φ = 342854613360.

The previous prime is 438772273169. The next prime is 438772273271. The reversal of 438772273265 is 562372277834.

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

It is not a de Polignac number, because 438772273265 - 2³⁰ = 437698531441 is a prime.

It is a super-2 number, since 2×438772273265² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 438772273265.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020400421 + ... + 1020400850.

It is an arithmetic number, because the mean of its divisors is an integer number (67346441976).

Almost surely, 2^438772273265 is an apocalyptic number.

It is an amenable number.

438772273265 is a deficient number, since it is larger than the sum of its proper divisors (99999262543).

438772273265 is a wasteful number, since it uses less digits than its factorization.

438772273265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040801319.

The product of its digits is 23708160, while the sum is 56.

The spelling of 438772273265 in words is "four hundred thirty-eight billion, seven hundred seventy-two million, two hundred seventy-three thousand, two hundred sixty-five".