78196966969187 has 8 divisors (see below), whose sum is σ = 85305900392640. Its totient is φ = 71088053253160.

The previous prime is 78196966969171. The next prime is 78196966969207.

78196966969187 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78196966969187 - 2⁴ = 78196966969171 is a prime.

It is a super-2 number, since 2×78196966969187² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78196966969096 and 78196966969105.

It is not an unprimeable number, because it can be changed into a prime (78196966966187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4086608 + ... + 13156530.

It is an arithmetic number, because the mean of its divisors is an integer number (10663237549080).

Almost surely, 2^{78196966969187} is an apocalyptic number.

78196966969187 is a deficient number, since it is larger than the sum of its proper divisors (7108933423453).

78196966969187 is a wasteful number, since it uses less digits than its factorization.

78196966969187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853713.

The product of its digits is 26665583616, while the sum is 92.

The spelling of 78196966969187 in words is "seventy-eight trillion, one hundred ninety-six billion, nine hundred sixty-six million, nine hundred sixty-nine thousand, one hundred eighty-seven".