78663000195 has 96 divisors (see below), whose sum is σ = 154786632000. Its totient is φ = 36635784192.

The previous prime is 78663000193. The next prime is 78663000211. The reversal of 78663000195 is 59100036687.

It is a happy number.

78663000195 is a `hidden beast` number, since 7 + 8 + 6 + 630 + 0 + 0 + 1 + 9 + 5 = 666.

It is not a de Polignac number, because 78663000195 - 2¹ = 78663000193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 78663000195.

It is not an unprimeable number, because it can be changed into a prime (78663000193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8409381 + ... + 8418729.

It is an arithmetic number, because the mean of its divisors is an integer number (1612360750).

Almost surely, 2^78663000195 is an apocalyptic number.

78663000195 is the 140235-th decagonal number.

78663000195 is a deficient number, since it is larger than the sum of its proper divisors (76123631805).

78663000195 is a wasteful number, since it uses less digits than its factorization.

78663000195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10149 (or 10146 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 78663000195 in words is "seventy-eight billion, six hundred sixty-three million, one hundred ninety-five", and thus it is an aban number.