78078002558275 has 12 divisors (see below), whose sum is σ = 96816983215792. Its totient is φ = 62462234276640.

The previous prime is 78078002558197. The next prime is 78078002558291. The reversal of 78078002558275 is 57285520087087.

It is not a de Polignac number, because 78078002558275 - 2¹⁹ = 78078002033987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5763169 + ... + 13761181.

Almost surely, 2^{78078002558275} is an apocalyptic number.

78078002558275 is a deficient number, since it is larger than the sum of its proper divisors (18738980657517).

78078002558275 is a wasteful number, since it uses less digits than its factorization.

78078002558275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8388510 (or 8388505 counting only the distinct ones).

The product of its (nonzero) digits is 87808000, while the sum is 64.

The spelling of 78078002558275 in words is "seventy-eight trillion, seventy-eight billion, two million, five hundred fifty-eight thousand, two hundred seventy-five".