1649470163 has 16 divisors (see below), whose sum is σ = 1822818816. Its totient is φ = 1480124640.

The previous prime is 1649470111. The next prime is 1649470171. The reversal of 1649470163 is 3610749461.

It is a cyclic number.

It is not a de Polignac number, because 1649470163 - 2²⁰ = 1648421587 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 1649470163.

It is not an unprimeable number, because it can be changed into a prime (1649470183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342470 + ... + 347252.

It is an arithmetic number, because the mean of its divisors is an integer number (113926176).

Almost surely, 2^1649470163 is an apocalyptic number.

1649470163 is a deficient number, since it is larger than the sum of its proper divisors (173348653).

1649470163 is a wasteful number, since it uses less digits than its factorization.

1649470163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1649470163 is about 40613.6696569025. The cubic root of 1649470163 is about 1181.5392540506.

The spelling of 1649470163 in words is "one billion, six hundred forty-nine million, four hundred seventy thousand, one hundred sixty-three".