78951018 has 8 divisors (see below), whose sum is σ = 157902048. Its totient is φ = 26317004.

The previous prime is 78951001. The next prime is 78951049. The reversal of 78951018 is 81015987.

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

78951018 is an admirable number.

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, 6579246 + ... + 6579257.

It is an arithmetic number, because the mean of its divisors is an integer number (19737756).

Almost surely, 2^78951018 is an apocalyptic number.

78951018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78951018 is a wasteful number, since it uses less digits than its factorization.

78951018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13158508.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 78951018 is about 8885.4385372923. The cubic root of 78951018 is about 428.9953433784.

Subtracting 78951018 from its reverse (81015987), we obtain a square (2064969 = 1437²).

The spelling of 78951018 in words is "seventy-eight million, nine hundred fifty-one thousand, eighteen".