78024848017 has 4 divisors (see below), whose sum is σ = 78026512356. Its totient is φ = 78023183680.

The previous prime is 78024847981. The next prime is 78024848051. The reversal of 78024848017 is 71084842087.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55594094656 + 22430753361 = 235784^2 + 149769^2 .

It is a cyclic number.

It is not a de Polignac number, because 78024848017 - 2⁷ = 78024847889 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78024848117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759748 + ... + 856309.

It is an arithmetic number, because the mean of its divisors is an integer number (19506628089).

Almost surely, 2^78024848017 is an apocalyptic number.

It is an amenable number.

78024848017 is a deficient number, since it is larger than the sum of its proper divisors (1664339).

78024848017 is a wasteful number, since it uses less digits than its factorization.

78024848017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664338.

The product of its (nonzero) digits is 802816, while the sum is 49.

The spelling of 78024848017 in words is "seventy-eight billion, twenty-four million, eight hundred forty-eight thousand, seventeen".