73419491437 has 2 divisors, whose sum is σ = 73419491438. Its totient is φ = 73419491436.

The previous prime is 73419491407. The next prime is 73419491447.

73419491437 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69542436681 + 3877054756 = 263709^2 + 62266^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73419491437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73419491407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36709745718 + 36709745719.

It is an arithmetic number, because the mean of its divisors is an integer number (36709745719).

Almost surely, 2^73419491437 is an apocalyptic number.

It is an amenable number.

73419491437 is a deficient number, since it is larger than the sum of its proper divisors (1).

73419491437 is an equidigital number, since it uses as much as digits as its factorization.

73419491437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 52.

The spelling of 73419491437 in words is "seventy-three billion, four hundred nineteen million, four hundred ninety-one thousand, four hundred thirty-seven".