1421118624169 has 2 divisors, whose sum is σ = 1421118624170. Its totient is φ = 1421118624168.

The previous prime is 1421118624161. The next prime is 1421118624223. The reversal of 1421118624169 is 9614268111241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1310997520144 + 110121104025 = 1144988^2 + 331845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421118624169 - 2³ = 1421118624161 is a prime.

It is a super-2 number, since 2×1421118624169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1421118624161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710559312084 + 710559312085.

It is an arithmetic number, because the mean of its divisors is an integer number (710559312085).

Almost surely, 2^{1421118624169} is an apocalyptic number.

It is an amenable number.

1421118624169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421118624169 is an equidigital number, since it uses as much as digits as its factorization.

1421118624169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 46.

The spelling of 1421118624169 in words is "one trillion, four hundred twenty-one billion, one hundred eighteen million, six hundred twenty-four thousand, one hundred sixty-nine".