1008628844861 has 16 divisors (see below), whose sum is σ = 1108974924288. Its totient is φ = 909728055600.

The previous prime is 1008628844849. The next prime is 1008628844929. The reversal of 1008628844861 is 1684488268001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1008628844861 is a prime.

It is a super-2 number, since 2×1008628844861² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1008628844797 and 1008628844806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008628840861) 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, 6416936 + ... + 6572238.

It is an arithmetic number, because the mean of its divisors is an integer number (69310932768).

Almost surely, 2^{1008628844861} is an apocalyptic number.

1008628844861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1008628844861 is a deficient number, since it is larger than the sum of its proper divisors (100346079427).

1008628844861 is a wasteful number, since it uses less digits than its factorization.

1008628844861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159952.

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 1008628844861 in words is "one trillion, eight billion, six hundred twenty-eight million, eight hundred forty-four thousand, eight hundred sixty-one".