78504570546755 has 16 divisors (see below), whose sum is σ = 104083809136704. Its totient is φ = 56539353108480.

The previous prime is 78504570546749. The next prime is 78504570546793. The reversal of 78504570546755 is 55764507540587.

It is a happy number.

It is not a de Polignac number, because 78504570546755 - 2¹⁴ = 78504570530371 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20077893326 + ... + 20077897235.

It is an arithmetic number, because the mean of its divisors is an integer number (6505238071044).

Almost surely, 2^{78504570546755} is an apocalyptic number.

78504570546755 is a deficient number, since it is larger than the sum of its proper divisors (25579238589949).

78504570546755 is a wasteful number, since it uses less digits than its factorization.

78504570546755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40155790606.

The product of its (nonzero) digits is 823200000, while the sum is 68.

The spelling of 78504570546755 in words is "seventy-eight trillion, five hundred four billion, five hundred seventy million, five hundred forty-six thousand, seven hundred fifty-five".