782848889871 has 4 divisors (see below), whose sum is σ = 1043798519832. Its totient is φ = 521899259912.

The previous prime is 782848889857. The next prime is 782848889881. The reversal of 782848889871 is 178988848287.

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 782848889871 - 2⁵ = 782848889839 is a prime.

It is a super-2 number, since 2×782848889871² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782848889881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130474814976 + ... + 130474814981.

It is an arithmetic number, because the mean of its divisors is an integer number (260949629958).

Almost surely, 2^782848889871 is an apocalyptic number.

782848889871 is a deficient number, since it is larger than the sum of its proper divisors (260949629961).

782848889871 is a wasteful number, since it uses less digits than its factorization.

782848889871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260949629960.

The product of its digits is 924844032, while the sum is 78.

The spelling of 782848889871 in words is "seven hundred eighty-two billion, eight hundred forty-eight million, eight hundred eighty-nine thousand, eight hundred seventy-one".