78363518364 has 60 divisors (see below), whose sum is σ = 205171987944. Its totient is φ = 26081100576.

The previous prime is 78363518351. The next prime is 78363518369. The reversal of 78363518364 is 46381536387.

78363518364 is a `hidden beast` number, since 7 + 8 + 3 + 63 + 518 + 3 + 64 = 666.

It is a super-2 number, since 2×78363518364² (a number of 23 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78363518364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78363518369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26379 + ... + 396765.

Almost surely, 2^78363518364 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 78363518364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102585993972).

78363518364 is an abundant number, since it is smaller than the sum of its proper divisors (126808469580).

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

78363518364 is a wasteful number, since it uses less digits than its factorization.

78363518364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371056 (or 371045 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 78363518364 in words is "seventy-eight billion, three hundred sixty-three million, five hundred eighteen thousand, three hundred sixty-four".