78702101318880 has 1344 divisors, whose sum is σ = 315216604503360. Its totient is φ = 18424930664448.

The previous prime is 78702101318861. The next prime is 78702101318887. The reversal of 78702101318880 is 8881310120787.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78702101318887) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 2946196404 + ... + 2946223116.

It is an arithmetic number, because the mean of its divisors is an integer number (234536164065).

Almost surely, 2^{78702101318880} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78702101318880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157608302251680).

78702101318880 is an abundant number, since it is smaller than the sum of its proper divisors (236514503184480).

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

78702101318880 is a wasteful number, since it uses less digits than its factorization.

78702101318880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26855 (or 26832 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 54.

The spelling of 78702101318880 in words is "seventy-eight trillion, seven hundred two billion, one hundred one million, three hundred eighteen thousand, eight hundred eighty".