1949365663 has 8 divisors (see below), whose sum is σ = 2228185728. Its totient is φ = 1670630424.

The previous prime is 1949365651. The next prime is 1949365679. The reversal of 1949365663 is 3665639491.

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 1949365663 - 2⁵ = 1949365631 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 1949365663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949365633) 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, 39720 + ... + 74002.

It is an arithmetic number, because the mean of its divisors is an integer number (278523216).

Almost surely, 2^1949365663 is an apocalyptic number.

1949365663 is a deficient number, since it is larger than the sum of its proper divisors (278820065).

1949365663 is an equidigital number, since it uses as much as digits as its factorization.

1949365663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42413.

The product of its digits is 3149280, while the sum is 52.

The square root of 1949365663 is about 44151.6212952594. The cubic root of 1949365663 is about 1249.1974930029.

The spelling of 1949365663 in words is "one billion, nine hundred forty-nine million, three hundred sixty-five thousand, six hundred sixty-three".