78194125063216 has 40 divisors (see below), whose sum is σ = 152353084403520. Its totient is φ = 38877216093504.

The previous prime is 78194125063199. The next prime is 78194125063231. The reversal of 78194125063216 is 61236052149187.

It is a super-2 number, since 2×78194125063216² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79782255 + ... + 80756401.

It is an arithmetic number, because the mean of its divisors is an integer number (3808827110088).

It is a 1-persistent number, because it is pandigital, but 2⋅78194125063216 = 156388250126432 is not.

Almost surely, 2^{78194125063216} is an apocalyptic number.

It is an amenable number.

78194125063216 is a deficient number, since it is larger than the sum of its proper divisors (74158959340304).

78194125063216 is a wasteful number, since it uses less digits than its factorization.

78194125063216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002361 (or 1002355 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 78194125063216 in words is "seventy-eight trillion, one hundred ninety-four billion, one hundred twenty-five million, sixty-three thousand, two hundred sixteen".