1438471439609 has 8 divisors (see below), whose sum is σ = 1440183413760. Its totient is φ = 1436760468000.

The previous prime is 1438471439599. The next prime is 1438471439623. The reversal of 1438471439609 is 9069341748341.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438471439609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1438471439689) 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, 2640512 + ... + 3138350.

It is an arithmetic number, because the mean of its divisors is an integer number (180022926720).

Almost surely, 2^{1438471439609} is an apocalyptic number.

It is an amenable number.

1438471439609 is a deficient number, since it is larger than the sum of its proper divisors (1711974151).

1438471439609 is a wasteful number, since it uses less digits than its factorization.

1438471439609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501271.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 1438471439609 in words is "one trillion, four hundred thirty-eight billion, four hundred seventy-one million, four hundred thirty-nine thousand, six hundred nine".