4991685626767 has 8 divisors (see below), whose sum is σ = 5713210142496. Its totient is φ = 4272267753312.

The previous prime is 4991685626737. The next prime is 4991685626771. The reversal of 4991685626767 is 7676265861994.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4991685626767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4991685626693 and 4991685626702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991685626737) 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, 526655488 + ... + 526664965.

It is an arithmetic number, because the mean of its divisors is an integer number (714151267812).

Almost surely, 2^{4991685626767} is an apocalyptic number.

4991685626767 is a deficient number, since it is larger than the sum of its proper divisors (721524515729).

4991685626767 is a wasteful number, since it uses less digits than its factorization.

4991685626767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053321137.

The product of its digits is 1646023680, while the sum is 76.

The spelling of 4991685626767 in words is "four trillion, nine hundred ninety-one billion, six hundred eighty-five million, six hundred twenty-six thousand, seven hundred sixty-seven".