6887506738 has 12 divisors (see below), whose sum is σ = 12017996622. Its totient is φ = 2951788560.

The previous prime is 6887506687. The next prime is 6887506741. The reversal of 6887506738 is 8376057886.

It can be written as a sum of positive squares in only one way, i.e., 5598481329 + 1289025409 = 74823^2 + 35903^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35140243 + ... + 35140438.

Almost surely, 2^6887506738 is an apocalyptic number.

6887506738 is a deficient number, since it is larger than the sum of its proper divisors (5130489884).

6887506738 is a wasteful number, since it uses less digits than its factorization.

6887506738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70280697 (or 70280690 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 58.

The square root of 6887506738 is about 82991.0039582604. The cubic root of 6887506738 is about 1902.6285629347.

The spelling of 6887506738 in words is "six billion, eight hundred eighty-seven million, five hundred six thousand, seven hundred thirty-eight".