38717672407 has 2 divisors, whose sum is σ = 38717672408. Its totient is φ = 38717672406.

The previous prime is 38717672341. The next prime is 38717672443. The reversal of 38717672407 is 70427671783.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38717672407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38711672407) 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, 19358836203 + 19358836204.

It is an arithmetic number, because the mean of its divisors is an integer number (19358836204).

Almost surely, 2^38717672407 is an apocalyptic number.

38717672407 is a deficient number, since it is larger than the sum of its proper divisors (1).

38717672407 is an equidigital number, since it uses as much as digits as its factorization.

38717672407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2765952, while the sum is 52.

The spelling of 38717672407 in words is "thirty-eight billion, seven hundred seventeen million, six hundred seventy-two thousand, four hundred seven".