1949896568 has 16 divisors (see below), whose sum is σ = 3658274280. Its totient is φ = 974356768.

The previous prime is 1949896561. The next prime is 1949896589. The reversal of 1949896568 is 8656989491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949896561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59771 + ... + 86442.

Almost surely, 2^1949896568 is an apocalyptic number.

It is an amenable number.

1949896568 is a deficient number, since it is larger than the sum of its proper divisors (1708377712).

1949896568 is a wasteful number, since it uses less digits than its factorization.

1949896568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147886 (or 147882 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 65.

The square root of 1949896568 is about 44157.6331793270. The cubic root of 1949896568 is about 1249.3108880095.

The spelling of 1949896568 in words is "one billion, nine hundred forty-nine million, eight hundred ninety-six thousand, five hundred sixty-eight".