78713880982 has 48 divisors (see below), whose sum is σ = 134570761920. Its totient is φ = 34464165120.

The previous prime is 78713880977. The next prime is 78713880983. The reversal of 78713880982 is 28908831787.

It is a super-2 number, since 2×78713880982² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78713880982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78713880983) 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 23 ways as a sum of consecutive naturals, for example, 3025843 + ... + 3051745.

It is an arithmetic number, because the mean of its divisors is an integer number (2803557540).

Almost surely, 2^78713880982 is an apocalyptic number.

78713880982 is a deficient number, since it is larger than the sum of its proper divisors (55856880938).

78713880982 is a wasteful number, since it uses less digits than its factorization.

78713880982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26389 (or 26378 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 61.

The spelling of 78713880982 in words is "seventy-eight billion, seven hundred thirteen million, eight hundred eighty thousand, nine hundred eighty-two".