78052878 has 24 divisors (see below), whose sum is σ = 169749216. Its totient is φ = 25920000.

The previous prime is 78052847. The next prime is 78052879. The reversal of 78052878 is 87825087.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78052879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3123 + ... + 12878.

It is an arithmetic number, because the mean of its divisors is an integer number (7072884).

Almost surely, 2^78052878 is an apocalyptic number.

78052878 is an abundant number, since it is smaller than the sum of its proper divisors (91696338).

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

78052878 is a wasteful number, since it uses less digits than its factorization.

78052878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16280 (or 16277 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 78052878 is about 8834.7539863881. The cubic root of 78052878 is about 427.3623974906.

The spelling of 78052878 in words is "seventy-eight million, fifty-two thousand, eight hundred seventy-eight".