69638650855 has 4 divisors (see below), whose sum is σ = 83566381032. Its totient is φ = 55710920680.

The previous prime is 69638650849. The next prime is 69638650901. The reversal of 69638650855 is 55805683696.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 69638650855 - 2⁷ = 69638650727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69638650793 and 69638650802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6963865081 + ... + 6963865090.

It is an arithmetic number, because the mean of its divisors is an integer number (20891595258).

Almost surely, 2^69638650855 is an apocalyptic number.

69638650855 is a deficient number, since it is larger than the sum of its proper divisors (13927730177).

69638650855 is a wasteful number, since it uses less digits than its factorization.

69638650855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13927730176.

The product of its (nonzero) digits is 46656000, while the sum is 61.

The spelling of 69638650855 in words is "sixty-nine billion, six hundred thirty-eight million, six hundred fifty thousand, eight hundred fifty-five".