2103642568 has 8 divisors (see below), whose sum is σ = 3944329830. Its totient is φ = 1051821280.

The previous prime is 2103642559. The next prime is 2103642587. The reversal of 2103642568 is 8652463012.

It can be written as a sum of positive squares in only one way, i.e., 2075531364 + 28111204 = 45558^2 + 5302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131477653 + ... + 131477668.

Almost surely, 2^2103642568 is an apocalyptic number.

It is an amenable number.

2103642568 is a deficient number, since it is larger than the sum of its proper divisors (1840687262).

2103642568 is a wasteful number, since it uses less digits than its factorization.

2103642568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262955327 (or 262955323 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2103642568 is about 45865.4834052798. The cubic root of 2103642568 is about 1281.3191494767.

The spelling of 2103642568 in words is "two billion, one hundred three million, six hundred forty-two thousand, five hundred sixty-eight".