69638650850 has 72 divisors (see below), whose sum is σ = 137052718020. Its totient is φ = 26322071040.

The previous prime is 69638650849. The next prime is 69638650901. The reversal of 69638650850 is 5805683696.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 48517551289 + 21121099561 = 220267^2 + 145331^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7377734 + ... + 7387166.

Almost surely, 2^69638650850 is an apocalyptic number.

69638650850 is a deficient number, since it is larger than the sum of its proper divisors (67414067170).

69638650850 is a wasteful number, since it uses less digits than its factorization.

69638650850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9892 (or 9868 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 69638650850 in words is "sixty-nine billion, six hundred thirty-eight million, six hundred fifty thousand, eight hundred fifty".