577878136625879 has 4 divisors (see below), whose sum is σ = 578475735527184. Its totient is φ = 577280537724576.

The previous prime is 577878136625873. The next prime is 577878136625891. The reversal of 577878136625879 is 978526631878775.

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

It is a cyclic number.

It is not a de Polignac number, because 577878136625879 - 2³² = 577873841658583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 577878136625794 and 577878136625803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577878136625873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298799449202 + ... + 298799451135.

It is an arithmetic number, because the mean of its divisors is an integer number (144618933881796).

Almost surely, 2^{577878136625879} is an apocalyptic number.

577878136625879 is a deficient number, since it is larger than the sum of its proper divisors (597598901305).

577878136625879 is an equidigital number, since it uses as much as digits as its factorization.

577878136625879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597598901304.

The product of its digits is 59744563200, while the sum is 89.

The spelling of 577878136625879 in words is "five hundred seventy-seven trillion, eight hundred seventy-eight billion, one hundred thirty-six million, six hundred twenty-five thousand, eight hundred seventy-nine".