78270230752 has 72 divisors (see below), whose sum is σ = 180163428984. Its totient is φ = 33373976832.

The previous prime is 78270230737. The next prime is 78270230777. The reversal of 78270230752 is 25703207287.

It is a super-2 number, since 2×78270230752² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78270230699 and 78270230708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182203 + ... + 435589.

It is an arithmetic number, because the mean of its divisors is an integer number (2502269847).

Almost surely, 2^78270230752 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 78270230752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90081714492).

78270230752 is an abundant number, since it is smaller than the sum of its proper divisors (101893198232).

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

78270230752 is a wasteful number, since it uses less digits than its factorization.

78270230752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253608 (or 253593 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 78270230752 in words is "seventy-eight billion, two hundred seventy million, two hundred thirty thousand, seven hundred fifty-two".