438288068669 has 16 divisors (see below), whose sum is σ = 489823139520. Its totient is φ = 388723090560.

The previous prime is 438288068663. The next prime is 438288068693. The reversal of 438288068669 is 966860882834.

It is a cyclic number.

It is not a de Polignac number, because 438288068669 - 2²⁸ = 438019633213 is a prime.

It is a super-2 number, since 2×438288068669² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 438288068599 and 438288068608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438288068663) 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, 135254 + ... + 945975.

It is an arithmetic number, because the mean of its divisors is an integer number (30613946220).

Almost surely, 2^438288068669 is an apocalyptic number.

It is an amenable number.

438288068669 is a deficient number, since it is larger than the sum of its proper divisors (51535070851).

438288068669 is a wasteful number, since it uses less digits than its factorization.

438288068669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082140.

The product of its (nonzero) digits is 191102976, while the sum is 68.

The spelling of 438288068669 in words is "four hundred thirty-eight billion, two hundred eighty-eight million, sixty-eight thousand, six hundred sixty-nine".