1418737873681 has 2 divisors, whose sum is σ = 1418737873682. Its totient is φ = 1418737873680.

The previous prime is 1418737873667. The next prime is 1418737873687. The reversal of 1418737873681 is 1863787378141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1380472254225 + 38265619456 = 1174935^2 + 195616^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418737873681 - 2¹¹ = 1418737871633 is a prime.

It is a super-2 number, since 2×1418737873681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1418737873687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709368936840 + 709368936841.

It is an arithmetic number, because the mean of its divisors is an integer number (709368936841).

Almost surely, 2^{1418737873681} is an apocalyptic number.

It is an amenable number.

1418737873681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1418737873681 is an equidigital number, since it uses as much as digits as its factorization.

1418737873681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37933056, while the sum is 64.

The spelling of 1418737873681 in words is "one trillion, four hundred eighteen billion, seven hundred thirty-seven million, eight hundred seventy-three thousand, six hundred eighty-one".