78631108782 has 16 divisors (see below), whose sum is σ = 157274514000. Its totient is φ = 26208320192.

The previous prime is 78631108697. The next prime is 78631108807. The reversal of 78631108782 is 28780113687.

It is a congruent number.

It is an unprimeable number.

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, 428157 + ... + 583592.

It is an arithmetic number, because the mean of its divisors is an integer number (9829657125).

Almost surely, 2^78631108782 is an apocalyptic number.

78631108782 is an abundant number, since it is smaller than the sum of its proper divisors (78643405218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78631108782 is a wasteful number, since it uses less digits than its factorization.

78631108782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024707.

The product of its (nonzero) digits is 903168, while the sum is 51.

The spelling of 78631108782 in words is "seventy-eight billion, six hundred thirty-one million, one hundred eight thousand, seven hundred eighty-two".