78860158 has 16 divisors (see below), whose sum is σ = 128207520. Its totient is φ = 36163296.

The previous prime is 78860153. The next prime is 78860183. The reversal of 78860158 is 85106887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78860153) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5578 + ... + 13741.

It is an arithmetic number, because the mean of its divisors is an integer number (8012970).

Almost surely, 2^78860158 is an apocalyptic number.

78860158 is a deficient number, since it is larger than the sum of its proper divisors (49347362).

78860158 is a wasteful number, since it uses less digits than its factorization.

78860158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19491.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 78860158 is about 8880.3242057934. The cubic root of 78860158 is about 428.8307118548.

The spelling of 78860158 in words is "seventy-eight million, eight hundred sixty thousand, one hundred fifty-eight".