78910161607 has 4 divisors (see below), whose sum is σ = 78910968600. Its totient is φ = 78909354616.

The previous prime is 78910161559. The next prime is 78910161641. The reversal of 78910161607 is 70616101987.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78910161607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78910161007) 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 3 ways as a sum of consecutive naturals, for example, 232732 + ... + 460417.

It is an arithmetic number, because the mean of its divisors is an integer number (19727742150).

Almost surely, 2^78910161607 is an apocalyptic number.

78910161607 is a deficient number, since it is larger than the sum of its proper divisors (806993).

78910161607 is a wasteful number, since it uses less digits than its factorization.

78910161607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806992.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 78910161607 in words is "seventy-eight billion, nine hundred ten million, one hundred sixty-one thousand, six hundred seven".