78315648027 has 8 divisors (see below), whose sum is σ = 104534492160. Its totient is φ = 52153617960.

The previous prime is 78315648017. The next prime is 78315648031. The reversal of 78315648027 is 72084651387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78315648027 - 2¹¹ = 78315645979 is a prime.

It is a super-2 number, since 2×78315648027² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78315648007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14200299 + ... + 14205812.

It is an arithmetic number, because the mean of its divisors is an integer number (13066811520).

Almost surely, 2^78315648027 is an apocalyptic number.

78315648027 is a deficient number, since it is larger than the sum of its proper divisors (26218844133).

78315648027 is a wasteful number, since it uses less digits than its factorization.

78315648027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28407033.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 78315648027 in words is "seventy-eight billion, three hundred fifteen million, six hundred forty-eight thousand, twenty-seven".