78475623072 has 768 divisors, whose sum is σ = 281014272000. Its totient is φ = 18966528000.

The previous prime is 78475623071. The next prime is 78475623097. The reversal of 78475623072 is 27032657487.

It is not an unprimeable number, because it can be changed into a prime (78475623071) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 325624872 + ... + 325625112.

It is an arithmetic number, because the mean of its divisors is an integer number (365904000).

Almost surely, 2^78475623072 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 78475623072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140507136000).

78475623072 is an abundant number, since it is smaller than the sum of its proper divisors (202538648928).

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

78475623072 is a wasteful number, since it uses less digits than its factorization.

78475623072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 51.

The spelling of 78475623072 in words is "seventy-eight billion, four hundred seventy-five million, six hundred twenty-three thousand, seventy-two".