78867102044 has 12 divisors (see below), whose sum is σ = 138037604544. Its totient is φ = 39427786464.

The previous prime is 78867102043. The next prime is 78867102059. The reversal of 78867102044 is 44020176887.

It is a self number, because there is not a number n which added to its sum of digits gives 78867102044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78867102043) 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, 1410284 + ... + 1465139.

It is an arithmetic number, because the mean of its divisors is an integer number (11503133712).

Almost surely, 2^78867102044 is an apocalyptic number.

It is an amenable number.

78867102044 is a deficient number, since it is larger than the sum of its proper divisors (59170502500).

78867102044 is a wasteful number, since it uses less digits than its factorization.

78867102044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882284 (or 2882282 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The spelling of 78867102044 in words is "seventy-eight billion, eight hundred sixty-seven million, one hundred two thousand, forty-four".