6898131536 has 10 divisors (see below), whose sum is σ = 13365129882. Its totient is φ = 3449065760.

The previous prime is 6898131517. The next prime is 6898131547. The reversal of 6898131536 is 6351318986.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5129424400 + 1768707136 = 71620^2 + 42056^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215566595 + ... + 215566626.

Almost surely, 2^6898131536 is an apocalyptic number.

It is an amenable number.

6898131536 is a deficient number, since it is larger than the sum of its proper divisors (6466998346).

6898131536 is a wasteful number, since it uses less digits than its factorization.

6898131536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431133229 (or 431133223 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 6898131536 is about 83054.9910360600. The cubic root of 6898131536 is about 1903.6064038823.

The spelling of 6898131536 in words is "six billion, eight hundred ninety-eight million, one hundred thirty-one thousand, five hundred thirty-six".