71414994421 has 2 divisors, whose sum is σ = 71414994422. Its totient is φ = 71414994420.

The previous prime is 71414994397. The next prime is 71414994437. The reversal of 71414994421 is 12449941417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59127271921 + 12287722500 = 243161^2 + 110850^2 .

It is a cyclic number.

It is not a de Polignac number, because 71414994421 - 2⁷ = 71414994293 is a prime.

It is a super-2 number, since 2×71414994421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71414994821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35707497210 + 35707497211.

It is an arithmetic number, because the mean of its divisors is an integer number (35707497211).

Almost surely, 2^71414994421 is an apocalyptic number.

It is an amenable number.

71414994421 is a deficient number, since it is larger than the sum of its proper divisors (1).

71414994421 is an equidigital number, since it uses as much as digits as its factorization.

71414994421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The spelling of 71414994421 in words is "seventy-one billion, four hundred fourteen million, nine hundred ninety-four thousand, four hundred twenty-one".