78118850250 has 768 divisors, whose sum is σ = 268202188800. Its totient is φ = 16974619200.

The previous prime is 78118850233. The next prime is 78118850269. The reversal of 78118850250 is 5205881187.

78118850250 is a `hidden beast` number, since 7 + 8 + 11 + 88 + 502 + 50 = 666.

It is a super-2 number, since 2×78118850250² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 78118850196 and 78118850205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 479256669 + ... + 479256831.

It is an arithmetic number, because the mean of its divisors is an integer number (349221600).

Almost surely, 2^78118850250 is an apocalyptic number.

78118850250 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 78118850250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134101094400).

78118850250 is an abundant number, since it is smaller than the sum of its proper divisors (190083338550).

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

78118850250 is a wasteful number, since it uses less digits than its factorization.

78118850250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 45.

The spelling of 78118850250 in words is "seventy-eight billion, one hundred eighteen million, eight hundred fifty thousand, two hundred fifty".