438744537152 has 28 divisors (see below), whose sum is σ = 891868664316. Its totient is φ = 214021724160.

The previous prime is 438744537071. The next prime is 438744537169. The reversal of 438744537152 is 251735447834.

It can be written as a sum of positive squares in 2 ways, for example, as 258649547776 + 180094989376 = 508576^2 + 424376^2 .

It is a super-2 number, since 2×438744537152² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 438744537094 and 438744537103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83599613 + ... + 83604860.

It is an arithmetic number, because the mean of its divisors is an integer number (31852452297).

Almost surely, 2^438744537152 is an apocalyptic number.

It is an amenable number.

438744537152 is an abundant number, since it is smaller than the sum of its proper divisors (453124127164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438744537152 is a wasteful number, since it uses less digits than its factorization.

438744537152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167204526 (or 167204516 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 53.

The spelling of 438744537152 in words is "four hundred thirty-eight billion, seven hundred forty-four million, five hundred thirty-seven thousand, one hundred fifty-two".