27943048947 has 16 divisors (see below), whose sum is σ = 41004125568. Its totient is φ = 16785310080.

The previous prime is 27943048891. The next prime is 27943048961. The reversal of 27943048947 is 74984034972.

It is not a de Polignac number, because 27943048947 - 2¹¹ = 27943046899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27943048247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3742993 + ... + 3750450.

It is an arithmetic number, because the mean of its divisors is an integer number (2562757848).

Almost surely, 2^27943048947 is an apocalyptic number.

27943048947 is a deficient number, since it is larger than the sum of its proper divisors (13061076621).

27943048947 is a wasteful number, since it uses less digits than its factorization.

27943048947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7493570.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 27943048947 in words is "twenty-seven billion, nine hundred forty-three million, forty-eight thousand, nine hundred forty-seven".