78358687360 has 128 divisors (see below), whose sum is σ = 198997920000. Its totient is φ = 29420900352.

The previous prime is 78358687291. The next prime is 78358687361. The reversal of 78358687360 is 6378685387.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×78358687360² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78358687361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295881 + ... + 1354999.

It is an arithmetic number, because the mean of its divisors is an integer number (1554671250).

Almost surely, 2^78358687360 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 78358687360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99498960000).

78358687360 is an abundant number, since it is smaller than the sum of its proper divisors (120639232640).

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

78358687360 is a wasteful number, since it uses less digits than its factorization.

78358687360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59266 (or 59254 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 78358687360 in words is "seventy-eight billion, three hundred fifty-eight million, six hundred eighty-seven thousand, three hundred sixty".