438674307779 has 8 divisors (see below), whose sum is σ = 441898350000. Its totient is φ = 435453998112.

The previous prime is 438674307763. The next prime is 438674307787. The reversal of 438674307779 is 977703476834.

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 438674307779 - 2⁴ = 438674307763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438674307739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697004 + ... + 1167545.

It is an arithmetic number, because the mean of its divisors is an integer number (55237293750).

Almost surely, 2^438674307779 is an apocalyptic number.

438674307779 is a deficient number, since it is larger than the sum of its proper divisors (3224042221).

438674307779 is a wasteful number, since it uses less digits than its factorization.

438674307779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866277.

The product of its (nonzero) digits is 149361408, while the sum is 65.

The spelling of 438674307779 in words is "four hundred thirty-eight billion, six hundred seventy-four million, three hundred seven thousand, seven hundred seventy-nine".