38947284407 has 2 divisors, whose sum is σ = 38947284408. Its totient is φ = 38947284406.

The previous prime is 38947284373. The next prime is 38947284413. The reversal of 38947284407 is 70448274983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38947284407 - 2⁸ = 38947284151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38947284457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19473642203 + 19473642204.

It is an arithmetic number, because the mean of its divisors is an integer number (19473642204).

Almost surely, 2^38947284407 is an apocalyptic number.

38947284407 is a deficient number, since it is larger than the sum of its proper divisors (1).

38947284407 is an equidigital number, since it uses as much as digits as its factorization.

38947284407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 38947284407 in words is "thirty-eight billion, nine hundred forty-seven million, two hundred eighty-four thousand, four hundred seven".