78549032352 has 192 divisors, whose sum is σ = 238120694784. Its totient is φ = 22208256000.

The previous prime is 78549032351. The next prime is 78549032357. The reversal of 78549032352 is 25323094587.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (78549032351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27492108 + ... + 27494964.

It is an arithmetic number, because the mean of its divisors is an integer number (1240211952).

Almost surely, 2^78549032352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78549032352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119060347392).

78549032352 is an abundant number, since it is smaller than the sum of its proper divisors (159571662432).

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

78549032352 is a wasteful number, since it uses less digits than its factorization.

78549032352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 78549032352 in words is "seventy-eight billion, five hundred forty-nine million, thirty-two thousand, three hundred fifty-two".