78060778 has 8 divisors (see below), whose sum is σ = 123253920. Its totient is φ = 36976140.

The previous prime is 78060757. The next prime is 78060791. The reversal of 78060778 is 87706087.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027078 + ... + 1027153.

It is an arithmetic number, because the mean of its divisors is an integer number (15406740).

Almost surely, 2^78060778 is an apocalyptic number.

78060778 is a deficient number, since it is larger than the sum of its proper divisors (45193142).

78060778 is a wasteful number, since it uses less digits than its factorization.

78060778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054252.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 78060778 is about 8835.2010729807. The cubic root of 78060778 is about 427.3768152765.

The spelling of 78060778 in words is "seventy-eight million, sixty thousand, seven hundred seventy-eight".