27973511745 has 8 divisors (see below), whose sum is σ = 44757618816. Its totient is φ = 14919206256.

The previous prime is 27973511719. The next prime is 27973511749. The reversal of 27973511745 is 54711537972.

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

It is not a de Polignac number, because 27973511745 - 2⁹ = 27973511233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27973511749) 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, 932450377 + ... + 932450406.

It is an arithmetic number, because the mean of its divisors is an integer number (5594702352).

Almost surely, 2^27973511745 is an apocalyptic number.

It is an amenable number.

27973511745 is a deficient number, since it is larger than the sum of its proper divisors (16784107071).

27973511745 is a wasteful number, since it uses less digits than its factorization.

27973511745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864900791.

The product of its digits is 1852200, while the sum is 51.

The spelling of 27973511745 in words is "twenty-seven billion, nine hundred seventy-three million, five hundred eleven thousand, seven hundred forty-five".