77757347831063 has 4 divisors (see below), whose sum is σ = 77757460523568. Its totient is φ = 77757235138560.

The previous prime is 77757347831039. The next prime is 77757347831113. The reversal of 77757347831063 is 36013874375777.

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 77757347831063 - 2¹⁸ = 77757347568919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77757347830984 and 77757347831002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77757347831003) 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, 55304843 + ... + 56693388.

It is an arithmetic number, because the mean of its divisors is an integer number (19439365130892).

Almost surely, 2^{77757347831063} is an apocalyptic number.

77757347831063 is a deficient number, since it is larger than the sum of its proper divisors (112692505).

77757347831063 is a wasteful number, since it uses less digits than its factorization.

77757347831063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112692504.

The product of its (nonzero) digits is 435637440, while the sum is 68.

The spelling of 77757347831063 in words is "seventy-seven trillion, seven hundred fifty-seven billion, three hundred forty-seven million, eight hundred thirty-one thousand, sixty-three".