27906485957 has 8 divisors (see below), whose sum is σ = 31894933632. Its totient is φ = 23918490000.

The previous prime is 27906485939. The next prime is 27906485977. The reversal of 27906485957 is 75958460972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27906485957 - 2¹² = 27906481861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27906485957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27906485977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31832 + ... + 238382.

It is an arithmetic number, because the mean of its divisors is an integer number (3986866704).

Almost surely, 2^27906485957 is an apocalyptic number.

It is an amenable number.

27906485957 is a deficient number, since it is larger than the sum of its proper divisors (3988447675).

27906485957 is a wasteful number, since it uses less digits than its factorization.

27906485957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225859.

The product of its (nonzero) digits is 38102400, while the sum is 62.

The spelling of 27906485957 in words is "twenty-seven billion, nine hundred six million, four hundred eighty-five thousand, nine hundred fifty-seven".