78587307310804 has 12 divisors (see below), whose sum is σ = 137528054170164. Its totient is φ = 39293577547904.

The previous prime is 78587307310801. The next prime is 78587307310843. The reversal of 78587307310804 is 40801370378587.

It can be written as a sum of positive squares in 2 ways, for example, as 76828766100804 + 1758541210000 = 8765202^2 + 1326100^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78587307310801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16671157 + ... + 20859100.

It is an arithmetic number, because the mean of its divisors is an integer number (11460671180847).

Almost surely, 2^{78587307310804} is an apocalyptic number.

It is an amenable number.

78587307310804 is a deficient number, since it is larger than the sum of its proper divisors (58940746859360).

78587307310804 is a wasteful number, since it uses less digits than its factorization.

78587307310804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38053754 (or 38053752 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 61.

The spelling of 78587307310804 in words is "seventy-eight trillion, five hundred eighty-seven billion, three hundred seven million, three hundred ten thousand, eight hundred four".