27969785163407 has 4 divisors (see below), whose sum is σ = 28116223829376. Its totient is φ = 27823346497440.

The previous prime is 27969785163371. The next prime is 27969785163409. The reversal of 27969785163407 is 70436158796972.

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

It is a cyclic number.

It is not a de Polignac number, because 27969785163407 - 2¹⁴ = 27969785147023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27969785163409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73219332698 + ... + 73219333079.

It is an arithmetic number, because the mean of its divisors is an integer number (7029055957344).

It is a 2-persistent number, because it is pandigital, and so is 2⋅27969785163407 = 55939570326814, but 3⋅27969785163407 = 83909355490221 is not.

Almost surely, 2^{27969785163407} is an apocalyptic number.

27969785163407 is a deficient number, since it is larger than the sum of its proper divisors (146438665969).

27969785163407 is a wasteful number, since it uses less digits than its factorization.

27969785163407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146438665968.

The product of its (nonzero) digits is 960180480, while the sum is 74.

The spelling of 27969785163407 in words is "twenty-seven trillion, nine hundred sixty-nine billion, seven hundred eighty-five million, one hundred sixty-three thousand, four hundred seven".