78968486987 has 16 divisors (see below), whose sum is σ = 85391661600. Its totient is φ = 72595740672.

The previous prime is 78968486969. The next prime is 78968487007.

78968486987 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78968486987 - 2¹⁰ = 78968485963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78968486287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3180473 + ... + 3205205.

It is an arithmetic number, because the mean of its divisors is an integer number (5336978850).

Almost surely, 2^78968486987 is an apocalyptic number.

78968486987 is a deficient number, since it is larger than the sum of its proper divisors (6423174613).

78968486987 is a wasteful number, since it uses less digits than its factorization.

78968486987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25742.

The product of its digits is 2341011456, while the sum is 80.

The spelling of 78968486987 in words is "seventy-eight billion, nine hundred sixty-eight million, four hundred eighty-six thousand, nine hundred eighty-seven".