71914218437 has 2 divisors, whose sum is σ = 71914218438. Its totient is φ = 71914218436.

The previous prime is 71914218421. The next prime is 71914218449. The reversal of 71914218437 is 73481241917.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45522916321 + 26391302116 = 213361^2 + 162454^2 .

It is an emirp because it is prime and its reverse (73481241917) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71914218437 - 2⁴ = 71914218421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71914218391 and 71914218400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71914218457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35957109218 + 35957109219.

It is an arithmetic number, because the mean of its divisors is an integer number (35957109219).

Almost surely, 2^71914218437 is an apocalyptic number.

It is an amenable number.

71914218437 is a deficient number, since it is larger than the sum of its proper divisors (1).

71914218437 is an equidigital number, since it uses as much as digits as its factorization.

71914218437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 47.

The spelling of 71914218437 in words is "seventy-one billion, nine hundred fourteen million, two hundred eighteen thousand, four hundred thirty-seven".