1648965059 has 8 divisors (see below), whose sum is σ = 1966467840. Its totient is φ = 1351946376.

The previous prime is 1648965049. The next prime is 1648965077. The reversal of 1648965059 is 9505698461.

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 not a de Polignac number, because 1648965059 - 2¹⁶ = 1648899523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1648965059.

It is not an unprimeable number, because it can be changed into a prime (1648965049) 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, 5120849 + ... + 5121170.

It is an arithmetic number, because the mean of its divisors is an integer number (245808480).

Almost surely, 2^1648965059 is an apocalyptic number.

1648965059 is a deficient number, since it is larger than the sum of its proper divisors (317502781).

1648965059 is a wasteful number, since it uses less digits than its factorization.

1648965059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10242049.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The square root of 1648965059 is about 40607.4507818454. The cubic root of 1648965059 is about 1181.4186373126.

The spelling of 1648965059 in words is "one billion, six hundred forty-eight million, nine hundred sixty-five thousand, fifty-nine".