78043267632 has 320 divisors, whose sum is σ = 230590955520. Its totient is φ = 22539264000.

The previous prime is 78043267613. The next prime is 78043267661. The reversal of 78043267632 is 23676234087.

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

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 63 ways as a sum of consecutive naturals, for example, 221085568 + ... + 221085920.

It is an arithmetic number, because the mean of its divisors is an integer number (720596736).

Almost surely, 2^78043267632 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 78043267632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115295477760).

78043267632 is an abundant number, since it is smaller than the sum of its proper divisors (152547687888).

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

78043267632 is a wasteful number, since it uses less digits than its factorization.

78043267632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 78043267632 in words is "seventy-eight billion, forty-three million, two hundred sixty-seven thousand, six hundred thirty-two".