5515782768 has 30 divisors (see below), whose sum is σ = 15436531344. Its totient is φ = 1838594208.

The previous prime is 5515782763. The next prime is 5515782773. The reversal of 5515782768 is 8672875155.

5515782768 is a `hidden beast` number, since 5 + 5 + 1 + 578 + 2 + 7 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (5515782763) and next prime (5515782773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515782761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19151880 + ... + 19152167.

Almost surely, 2^5515782768 is an apocalyptic number.

It is an amenable number.

5515782768 is an abundant number, since it is smaller than the sum of its proper divisors (9920748576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5515782768 is a wasteful number, since it uses less digits than its factorization.

5515782768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38304061 (or 38304052 counting only the distinct ones).

The product of its digits is 4704000, while the sum is 54.

The square root of 5515782768 is about 74268.3160439228. The cubic root of 5515782768 is about 1766.8609996898.

The spelling of 5515782768 in words is "five billion, five hundred fifteen million, seven hundred eighty-two thousand, seven hundred sixty-eight".