77907556272027 has 18 divisors (see below), whose sum is σ = 107336349623604. Its totient is φ = 50262633770520.

The previous prime is 77907556271989. The next prime is 77907556272041. The reversal of 77907556272027 is 72027265570977.

It is not a de Polignac number, because 77907556272027 - 2¹¹ = 77907556269979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77907556279027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 473845528 + ... + 474009914.

Almost surely, 2^{77907556272027} is an apocalyptic number.

77907556272027 is a deficient number, since it is larger than the sum of its proper divisors (29428793351577).

77907556272027 is an frugal number, since it uses more digits than its factorization.

77907556272027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328839 (or 164421 counting only the distinct ones).

The product of its (nonzero) digits is 181515600, while the sum is 66.

The spelling of 77907556272027 in words is "seventy-seven trillion, nine hundred seven billion, five hundred fifty-six million, two hundred seventy-two thousand, twenty-seven".