78043388214 has 128 divisors (see below), whose sum is σ = 182784522240. Its totient is φ = 22028736000.

The previous prime is 78043388209. The next prime is 78043388219. The reversal of 78043388214 is 41288334087.

It is an interprime number because it is at equal distance from previous prime (78043388209) and next prime (78043388219).

It is a super-2 number, since 2×78043388214² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78043388219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32748867 + ... + 32751249.

It is an arithmetic number, because the mean of its divisors is an integer number (1428004080).

Almost surely, 2^78043388214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78043388214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91392261120).

78043388214 is an abundant number, since it is smaller than the sum of its proper divisors (104741134026).

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

78043388214 is a wasteful number, since it uses less digits than its factorization.

78043388214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2517 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 78043388214 in words is "seventy-eight billion, forty-three million, three hundred eighty-eight thousand, two hundred fourteen".