78193214502720 has 224 divisors, whose sum is σ = 252004541147136. Its totient is φ = 20537882265600.

The previous prime is 78193214502709. The next prime is 78193214502749. The reversal of 78193214502720 is 2720541239187.

It is a super-2 number, since 2×78193214502720² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69716607 + ... + 70829313.

Almost surely, 2^{78193214502720} 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 78193214502720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126002270573568).

78193214502720 is an abundant number, since it is smaller than the sum of its proper divisors (173811326644416).

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

78193214502720 is a wasteful number, since it uses less digits than its factorization.

78193214502720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113829 (or 1113819 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 78193214502720 in words is "seventy-eight trillion, one hundred ninety-three billion, two hundred fourteen million, five hundred two thousand, seven hundred twenty".