2147668439 has 8 divisors (see below), whose sum is σ = 2583661440. Its totient is φ = 1743971256.

The previous prime is 2147668427. The next prime is 2147668487. The reversal of 2147668439 is 9348667412.

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 2147668439 - 2²⁰ = 2146619863 is a prime.

It is a super-2 number, since 2×2147668439² = 9224959447753393442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147668489) 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, 8073809 + ... + 8074074.

It is an arithmetic number, because the mean of its divisors is an integer number (322957680).

Almost surely, 2^2147668439 is an apocalyptic number.

2147668439 is a deficient number, since it is larger than the sum of its proper divisors (435993001).

2147668439 is a wasteful number, since it uses less digits than its factorization.

2147668439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16147909.

The product of its digits is 1741824, while the sum is 50.

The square root of 2147668439 is about 46342.9437886719. The cubic root of 2147668439 is about 1290.1961601025.

The spelling of 2147668439 in words is "two billion, one hundred forty-seven million, six hundred sixty-eight thousand, four hundred thirty-nine".