78663236230658 has 16 divisors (see below), whose sum is σ = 118922768718336. Its totient is φ = 39022450649520.

The previous prime is 78663236230639. The next prime is 78663236230679. The reversal of 78663236230658 is 85603263236687.

78663236230658 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78663236230658² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78663236230594 and 78663236230603.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33183266 + ... + 35474717.

It is an arithmetic number, because the mean of its divisors is an integer number (7432673044896).

Almost surely, 2^{78663236230658} is an apocalyptic number.

78663236230658 is a deficient number, since it is larger than the sum of its proper divisors (40259532487678).

78663236230658 is a wasteful number, since it uses less digits than its factorization.

78663236230658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68662489.

The product of its (nonzero) digits is 313528320, while the sum is 65.

The spelling of 78663236230658 in words is "seventy-eight trillion, six hundred sixty-three billion, two hundred thirty-six million, two hundred thirty thousand, six hundred fifty-eight".