1117027661851 has 2 divisors, whose sum is σ = 1117027661852. Its totient is φ = 1117027661850.

The previous prime is 1117027661843. The next prime is 1117027661957. The reversal of 1117027661851 is 1581667207111.

It is a weak prime.

It is an emirp because it is prime and its reverse (1581667207111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117027661851 - 2³ = 1117027661843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1117027667851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558513830925 + 558513830926.

It is an arithmetic number, because the mean of its divisors is an integer number (558513830926).

Almost surely, 2^{1117027661851} is an apocalyptic number.

1117027661851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117027661851 is an equidigital number, since it uses as much as digits as its factorization.

1117027661851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 46.

The spelling of 1117027661851 in words is "one trillion, one hundred seventeen billion, twenty-seven million, six hundred sixty-one thousand, eight hundred fifty-one".