438996712685 has 8 divisors (see below), whose sum is σ = 549700231680. Its totient is φ = 335927919184.

The previous prime is 438996712607. The next prime is 438996712723. The reversal of 438996712685 is 586217699834.

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

It is a cyclic number.

It is not a de Polignac number, because 438996712685 - 2¹⁰ = 438996711661 is a prime.

It is a super-2 number, since 2×438996712685² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1908681245 + ... + 1908681474.

It is an arithmetic number, because the mean of its divisors is an integer number (68712528960).

Almost surely, 2^438996712685 is an apocalyptic number.

It is an amenable number.

438996712685 is a deficient number, since it is larger than the sum of its proper divisors (110703518995).

438996712685 is a wasteful number, since it uses less digits than its factorization.

438996712685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817362747.

The product of its digits is 156764160, while the sum is 68.

The spelling of 438996712685 in words is "four hundred thirty-eight billion, nine hundred ninety-six million, seven hundred twelve thousand, six hundred eighty-five".