27565776420747 has 32 divisors (see below), whose sum is σ = 37131214053120. Its totient is φ = 18189133200000.

The previous prime is 27565776420737. The next prime is 27565776420751. The reversal of 27565776420747 is 74702467756572.

It is not a de Polignac number, because 27565776420747 - 2⁸ = 27565776420491 is a prime.

It is a super-2 number, since 2×27565776420747² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27565776420737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1250080872 + ... + 1250102922.

It is an arithmetic number, because the mean of its divisors is an integer number (1160350439160).

Almost surely, 2^{27565776420747} is an apocalyptic number.

27565776420747 is a deficient number, since it is larger than the sum of its proper divisors (9565437632373).

27565776420747 is a wasteful number, since it uses less digits than its factorization.

27565776420747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26075.

The product of its (nonzero) digits is 968083200, while the sum is 69.

The spelling of 27565776420747 in words is "twenty-seven trillion, five hundred sixty-five billion, seven hundred seventy-six million, four hundred twenty thousand, seven hundred forty-seven".