77255369875389 has 16 divisors (see below), whose sum is σ = 103108727957312. Its totient is φ = 51452797650048.

The previous prime is 77255369875373. The next prime is 77255369875393. The reversal of 77255369875389 is 98357896355277.

It is not a de Polignac number, because 77255369875389 - 2⁴ = 77255369875373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77255369873389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201779874 + ... + 202162380.

It is an arithmetic number, because the mean of its divisors is an integer number (6444295497332).

Almost surely, 2^{77255369875389} is an apocalyptic number.

It is an amenable number.

77255369875389 is a deficient number, since it is larger than the sum of its proper divisors (25853358081923).

77255369875389 is a wasteful number, since it uses less digits than its factorization.

77255369875389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448716.

The product of its digits is 24004512000, while the sum is 84.

The spelling of 77255369875389 in words is "seventy-seven trillion, two hundred fifty-five billion, three hundred sixty-nine million, eight hundred seventy-five thousand, three hundred eighty-nine".