747168116861 has 4 divisors (see below), whose sum is σ = 754422176352. Its totient is φ = 739914057372.

The previous prime is 747168116857. The next prime is 747168116921. The reversal of 747168116861 is 168611861747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 747168116861 - 2² = 747168116857 is a prime.

It is a super-2 number, since 2×747168116861² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 747168116797 and 747168116806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747168116801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3627029591 + ... + 3627029796.

It is an arithmetic number, because the mean of its divisors is an integer number (188605544088).

Almost surely, 2^747168116861 is an apocalyptic number.

It is an amenable number.

747168116861 is a deficient number, since it is larger than the sum of its proper divisors (7254059491).

747168116861 is a wasteful number, since it uses less digits than its factorization.

747168116861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254059490.

The product of its digits is 2709504, while the sum is 56.

The spelling of 747168116861 in words is "seven hundred forty-seven billion, one hundred sixty-eight million, one hundred sixteen thousand, eight hundred sixty-one".