78467635287 has 6 divisors (see below), whose sum is σ = 113342139872. Its totient is φ = 52311756852.

The previous prime is 78467635277. The next prime is 78467635289. The reversal of 78467635287 is 78253676487.

78467635287 is a `hidden beast` number, since 7 + 8 + 46 + 7 + 63 + 528 + 7 = 666.

It is not a de Polignac number, because 78467635287 - 2⁷ = 78467635159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78467635289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4359313063 + ... + 4359313080.

Almost surely, 2^78467635287 is an apocalyptic number.

78467635287 is a deficient number, since it is larger than the sum of its proper divisors (34874504585).

78467635287 is a wasteful number, since it uses less digits than its factorization.

78467635287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718626149 (or 8718626146 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 63.

The spelling of 78467635287 in words is "seventy-eight billion, four hundred sixty-seven million, six hundred thirty-five thousand, two hundred eighty-seven".