78569979150 has 384 divisors, whose sum is σ = 227415444480. Its totient is φ = 17797570560.

The previous prime is 78569979119. The next prime is 78569979193. The reversal of 78569979150 is 5197996587.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 187517641 + ... + 187518059.

It is an arithmetic number, because the mean of its divisors is an integer number (592227720).

Almost surely, 2^78569979150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78569979150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113707722240).

78569979150 is an abundant number, since it is smaller than the sum of its proper divisors (148845465330).

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

78569979150 is a wasteful number, since it uses less digits than its factorization.

78569979150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 66.

The spelling of 78569979150 in words is "seventy-eight billion, five hundred sixty-nine million, nine hundred seventy-nine thousand, one hundred fifty".