78615473848470 has 768 divisors, whose sum is σ = 241513373122560. Its totient is φ = 18158855270400.

The previous prime is 78615473848453. The next prime is 78615473848529. The reversal of 78615473848470 is 7484837451687.

78615473848470 is a `hidden beast` number, since 7 + 8 + 6 + 1 + 5 + 4 + 73 + 8 + 484 + 70 = 666.

It is a Curzon number.

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 383 ways as a sum of consecutive naturals, for example, 9685282852 + ... + 9685290968.

It is an arithmetic number, because the mean of its divisors is an integer number (314470537920).

Almost surely, 2^{78615473848470} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78615473848470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120756686561280).

78615473848470 is an abundant number, since it is smaller than the sum of its proper divisors (162897899274090).

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

78615473848470 is a wasteful number, since it uses less digits than its factorization.

78615473848470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398 (or 8379 counting only the distinct ones).

The product of its (nonzero) digits is 1011548160, while the sum is 72.

The spelling of 78615473848470 in words is "seventy-eight trillion, six hundred fifteen billion, four hundred seventy-three million, eight hundred forty-eight thousand, four hundred seventy".