78663148 has 48 divisors (see below), whose sum is σ = 150764544. Its totient is φ = 35769600.

The previous prime is 78663127. The next prime is 78663157. The reversal of 78663148 is 84136687.

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 15 ways as a sum of consecutive naturals, for example, 482515 + ... + 482677.

It is an arithmetic number, because the mean of its divisors is an integer number (3140928).

Almost surely, 2^78663148 is an apocalyptic number.

It is an amenable number.

78663148 is a deficient number, since it is larger than the sum of its proper divisors (72101396).

78663148 is a wasteful number, since it uses less digits than its factorization.

78663148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 380 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 78663148 is about 8869.2247688284. The cubic root of 78663148 is about 428.4733096226.

The spelling of 78663148 in words is "seventy-eight million, six hundred sixty-three thousand, one hundred forty-eight".