78504338507026 has 16 divisors (see below), whose sum is σ = 120632283816408. Its totient is φ = 38293635427200.

The previous prime is 78504338506961. The next prime is 78504338507029. The reversal of 78504338507026 is 62070583340587.

It can be written as a sum of positive squares in 4 ways, for example, as 75733941375625 + 2770397131401 = 8702525^2 + 1664451^2 .

It is not an unprimeable number, because it can be changed into a prime (78504338507029) 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 7 ways as a sum of consecutive naturals, for example, 11830425 + ... + 17232748.

Almost surely, 2^{78504338507026} is an apocalyptic number.

78504338507026 is a deficient number, since it is larger than the sum of its proper divisors (42127945309382).

78504338507026 is a wasteful number, since it uses less digits than its factorization.

78504338507026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29096157.

The product of its (nonzero) digits is 33868800, while the sum is 58.

The spelling of 78504338507026 in words is "seventy-eight trillion, five hundred four billion, three hundred thirty-eight million, five hundred seven thousand, twenty-six".