27946978495 has 16 divisors (see below), whose sum is σ = 35480665440. Its totient is φ = 21073336704.

The previous prime is 27946978441. The next prime is 27946978517. The reversal of 27946978495 is 59487964972.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27946978495 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727932 + ... + 765361.

It is an arithmetic number, because the mean of its divisors is an integer number (2217541590).

Almost surely, 2^27946978495 is an apocalyptic number.

27946978495 is a deficient number, since it is larger than the sum of its proper divisors (7533686945).

27946978495 is a wasteful number, since it uses less digits than its factorization.

27946978495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493514.

The product of its digits is 274337280, while the sum is 70.

The spelling of 27946978495 in words is "twenty-seven billion, nine hundred forty-six million, nine hundred seventy-eight thousand, four hundred ninety-five".