438718834712 has 32 divisors (see below), whose sum is σ = 862810483680. Its totient is φ = 208734873600.

The previous prime is 438718834661. The next prime is 438718834721. The reversal of 438718834712 is 217438817834.

It is a super-2 number, since 2×438718834712² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 6141539 + ... + 6212562.

It is an arithmetic number, because the mean of its divisors is an integer number (26962827615).

Almost surely, 2^438718834712 is an apocalyptic number.

It is an amenable number.

438718834712 is a deficient number, since it is larger than the sum of its proper divisors (424091648968).

438718834712 is a wasteful number, since it uses less digits than its factorization.

438718834712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12354323 (or 12354319 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 56.

The spelling of 438718834712 in words is "four hundred thirty-eight billion, seven hundred eighteen million, eight hundred thirty-four thousand, seven hundred twelve".