1648839479 has 8 divisors (see below), whose sum is σ = 1966318080. Its totient is φ = 1351843416.

The previous prime is 1648839463. The next prime is 1648839499. The reversal of 1648839479 is 9749388461.

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

It is not a de Polignac number, because 1648839479 - 2⁴ = 1648839463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648839449) 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, 5120459 + ... + 5120780.

It is an arithmetic number, because the mean of its divisors is an integer number (245789760).

Almost surely, 2^1648839479 is an apocalyptic number.

1648839479 is a deficient number, since it is larger than the sum of its proper divisors (317478601).

1648839479 is a wasteful number, since it uses less digits than its factorization.

1648839479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10241269.

The product of its digits is 10450944, while the sum is 59.

The square root of 1648839479 is about 40605.9044844466. The cubic root of 1648839479 is about 1181.3886455069.

The spelling of 1648839479 in words is "one billion, six hundred forty-eight million, eight hundred thirty-nine thousand, four hundred seventy-nine".