27740767154 has 4 divisors (see below), whose sum is σ = 41611150734. Its totient is φ = 13870383576.

The previous prime is 27740767147. The next prime is 27740767181. The reversal of 27740767154 is 45176704772.

27740767154 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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., 21636939025 + 6103828129 = 147095^2 + 78127^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6935191787 + ... + 6935191790.

Almost surely, 2^27740767154 is an apocalyptic number.

27740767154 is a deficient number, since it is larger than the sum of its proper divisors (13870383580).

27740767154 is a wasteful number, since it uses less digits than its factorization.

27740767154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13870383579.

The product of its (nonzero) digits is 2304960, while the sum is 50.

The spelling of 27740767154 in words is "twenty-seven billion, seven hundred forty million, seven hundred sixty-seven thousand, one hundred fifty-four".