5668121623 has 16 divisors (see below), whose sum is σ = 6312059136. Its totient is φ = 5065182720.

The previous prime is 5668121581. The next prime is 5668121639. The reversal of 5668121623 is 3261218665.

It is a cyclic number.

It is not a de Polignac number, because 5668121623 - 2¹⁷ = 5667990551 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 (5668121653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73536 + ... + 129397.

It is an arithmetic number, because the mean of its divisors is an integer number (394503696).

Almost surely, 2^5668121623 is an apocalyptic number.

5668121623 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

5668121623 is a deficient number, since it is larger than the sum of its proper divisors (643937513).

5668121623 is a wasteful number, since it uses less digits than its factorization.

5668121623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203034.

The product of its digits is 103680, while the sum is 40.

The square root of 5668121623 is about 75286.9286330635. The cubic root of 5668121623 is about 1782.9796518002.

The spelling of 5668121623 in words is "five billion, six hundred sixty-eight million, one hundred twenty-one thousand, six hundred twenty-three".