1206618818851 has 2 divisors, whose sum is σ = 1206618818852. Its totient is φ = 1206618818850.

The previous prime is 1206618818831. The next prime is 1206618818863. The reversal of 1206618818851 is 1588188166021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1206618818851 - 2⁵ = 1206618818819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1206618818792 and 1206618818801.

It is not a weakly prime, because it can be changed into another prime (1206618818831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603309409425 + 603309409426.

It is an arithmetic number, because the mean of its divisors is an integer number (603309409426).

Almost surely, 2^{1206618818851} is an apocalyptic number.

1206618818851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206618818851 is an equidigital number, since it uses as much as digits as its factorization.

1206618818851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1474560, while the sum is 55.

The spelling of 1206618818851 in words is "one trillion, two hundred six billion, six hundred eighteen million, eight hundred eighteen thousand, eight hundred fifty-one".