78160378 has 8 divisors (see below), whose sum is σ = 117280980. Its totient is φ = 39066720.

The previous prime is 78160367. The next prime is 78160399. The reversal of 78160378 is 87306187.

It can be written as a sum of positive squares in 2 ways, for example, as 45522009 + 32638369 = 6747^2 + 5713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78160378² = 12218089378205768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78160378.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838 + ... + 13078.

Almost surely, 2^78160378 is an apocalyptic number.

78160378 is a deficient number, since it is larger than the sum of its proper divisors (39120602).

78160378 is a wasteful number, since it uses less digits than its factorization.

78160378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13472.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 78160378 is about 8840.8358202152. The cubic root of 78160378 is about 427.5585054956.

The spelling of 78160378 in words is "seventy-eight million, one hundred sixty thousand, three hundred seventy-eight".