78672150 has 72 divisors (see below), whose sum is σ = 214138080. Its totient is φ = 20704320.

The previous prime is 78672133. The next prime is 78672163. The reversal of 78672150 is 5127687.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34444 + ... + 36656.

It is an arithmetic number, because the mean of its divisors is an integer number (2974140).

Almost surely, 2^78672150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78672150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107069040).

78672150 is an abundant number, since it is smaller than the sum of its proper divisors (135465930).

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

78672150 is a wasteful number, since it uses less digits than its factorization.

78672150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2302 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 78672150 is about 8869.7322394760. The cubic root of 78672150 is about 428.4896534452.

The spelling of 78672150 in words is "seventy-eight million, six hundred seventy-two thousand, one hundred fifty".