78361168 has 40 divisors (see below), whose sum is σ = 163739520. Its totient is φ = 36207360.

The previous prime is 78361163. The next prime is 78361183. The reversal of 78361168 is 86116387.

It is a super-2 number, since 2×78361168² = 12280945300648448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78361168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78361163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9321 + ... + 15607.

It is an arithmetic number, because the mean of its divisors is an integer number (4093488).

Almost surely, 2^78361168 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 78361168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81869760).

78361168 is an abundant number, since it is smaller than the sum of its proper divisors (85378352).

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

78361168 is a wasteful number, since it uses less digits than its factorization.

78361168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355 (or 6349 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 78361168 is about 8852.1843631953. The cubic root of 78361168 is about 427.9243177096.

The spelling of 78361168 in words is "seventy-eight million, three hundred sixty-one thousand, one hundred sixty-eight".