78046551228 has 24 divisors (see below), whose sum is σ = 182118540240. Its totient is φ = 26014099840.

The previous prime is 78046551211. The next prime is 78046551257. The reversal of 78046551228 is 82215564087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65608 + ... + 400496.

It is an arithmetic number, because the mean of its divisors is an integer number (7588272510).

Almost surely, 2^78046551228 is an apocalyptic number.

It is an amenable number.

78046551228 is an abundant number, since it is smaller than the sum of its proper divisors (104071989012).

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

78046551228 is a wasteful number, since it uses less digits than its factorization.

78046551228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354317 (or 354315 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 78046551228 in words is "seventy-eight billion, forty-six million, five hundred fifty-one thousand, two hundred twenty-eight".