65738442431 has 2 divisors, whose sum is σ = 65738442432. Its totient is φ = 65738442430.

The previous prime is 65738442421. The next prime is 65738442433. The reversal of 65738442431 is 13424483756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65738442431 - 2¹⁰ = 65738441407 is a prime.

It is a super-2 number, since 2×65738442431² (a number of 22 digits) contains 22 as substring.

Together with 65738442433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65738442433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32869221215 + 32869221216.

It is an arithmetic number, because the mean of its divisors is an integer number (32869221216).

Almost surely, 2^65738442431 is an apocalyptic number.

65738442431 is a deficient number, since it is larger than the sum of its proper divisors (1).

65738442431 is an equidigital number, since it uses as much as digits as its factorization.

65738442431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 47.

The spelling of 65738442431 in words is "sixty-five billion, seven hundred thirty-eight million, four hundred forty-two thousand, four hundred thirty-one".