74434344431 has 2 divisors, whose sum is σ = 74434344432. Its totient is φ = 74434344430.

The previous prime is 74434344419. The next prime is 74434344437. The reversal of 74434344431 is 13444343447.

It is a strong prime.

It is an emirp because it is prime and its reverse (13444343447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74434344431 - 2⁶ = 74434344367 is a prime.

It is a super-2 number, since 2×74434344431² (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 (74434344437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37217172215 + 37217172216.

It is an arithmetic number, because the mean of its divisors is an integer number (37217172216).

Almost surely, 2^74434344431 is an apocalyptic number.

74434344431 is a deficient number, since it is larger than the sum of its proper divisors (1).

74434344431 is an equidigital number, since it uses as much as digits as its factorization.

74434344431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 41.

Adding to 74434344431 its reverse (13444343447), we get a palindrome (87878687878).

The spelling of 74434344431 in words is "seventy-four billion, four hundred thirty-four million, three hundred forty-four thousand, four hundred thirty-one".