27270408084778 has 4 divisors (see below), whose sum is σ = 40905612127170. Its totient is φ = 13635204042388.

The previous prime is 27270408084769. The next prime is 27270408084883. The reversal of 27270408084778 is 87748080407272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21659464684729 + 5610943400049 = 4653973^2 + 2368743^2 .

It is a super-2 number, since 2×27270408084778² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6817602021193 + ... + 6817602021196.

Almost surely, 2^{27270408084778} is an apocalyptic number.

27270408084778 is a deficient number, since it is larger than the sum of its proper divisors (13635204042392).

27270408084778 is a wasteful number, since it uses less digits than its factorization.

27270408084778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13635204042391.

The product of its (nonzero) digits is 78675968, while the sum is 64.

The spelling of 27270408084778 in words is "twenty-seven trillion, two hundred seventy billion, four hundred eight million, eighty-four thousand, seven hundred seventy-eight".