77971063263 has 8 divisors (see below), whose sum is σ = 106379125248. Its totient is φ = 50771855064.

The previous prime is 77971063253. The next prime is 77971063279. The reversal of 77971063263 is 36236017977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77971063263 - 2⁶ = 77971063199 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77971063253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302213295 + ... + 302213552.

It is an arithmetic number, because the mean of its divisors is an integer number (13297390656).

Almost surely, 2^77971063263 is an apocalyptic number.

77971063263 is a deficient number, since it is larger than the sum of its proper divisors (28408061985).

77971063263 is a wasteful number, since it uses less digits than its factorization.

77971063263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604426893.

The product of its (nonzero) digits is 2000376, while the sum is 51.

The spelling of 77971063263 in words is "seventy-seven billion, nine hundred seventy-one million, sixty-three thousand, two hundred sixty-three".