38429665541 has 2 divisors, whose sum is σ = 38429665542. Its totient is φ = 38429665540.

The previous prime is 38429665511. The next prime is 38429665591. The reversal of 38429665541 is 14556692483.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22581373441 + 15848292100 = 150271^2 + 125890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38429665541 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38429665501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19214832770 + 19214832771.

It is an arithmetic number, because the mean of its divisors is an integer number (19214832771).

Almost surely, 2^38429665541 is an apocalyptic number.

It is an amenable number.

38429665541 is a deficient number, since it is larger than the sum of its proper divisors (1).

38429665541 is an equidigital number, since it uses as much as digits as its factorization.

38429665541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 53.

The spelling of 38429665541 in words is "thirty-eight billion, four hundred twenty-nine million, six hundred sixty-five thousand, five hundred forty-one".