6749987535 has 12 divisors (see below), whose sum is σ = 11699978472. Its totient is φ = 3599993328.

The previous prime is 6749987521. The next prime is 6749987591. The reversal of 6749987535 is 5357899476.

6749987535 is a `hidden beast` number, since 6 + 7 + 4 + 9 + 98 + 7 + 535 = 666.

6749987535 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6749987535 - 2¹⁰ = 6749986511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74999817 + ... + 74999906.

It is an arithmetic number, because the mean of its divisors is an integer number (974998206).

Almost surely, 2^6749987535 is an apocalyptic number.

6749987535 is a deficient number, since it is larger than the sum of its proper divisors (4949990937).

6749987535 is a wasteful number, since it uses less digits than its factorization.

6749987535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149999734 (or 149999731 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 63.

The square root of 6749987535 is about 82158.3077661657. The cubic root of 6749987535 is about 1889.8804115145.

The spelling of 6749987535 in words is "six billion, seven hundred forty-nine million, nine hundred eighty-seven thousand, five hundred thirty-five".