38394129803 has 2 divisors, whose sum is σ = 38394129804. Its totient is φ = 38394129802.

The previous prime is 38394129773. The next prime is 38394129811. The reversal of 38394129803 is 30892149383.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38394129803 - 2¹⁴ = 38394113419 is a prime.

It is a super-2 number, since 2×38394129803² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38394129833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19197064901 + 19197064902.

It is an arithmetic number, because the mean of its divisors is an integer number (19197064902).

Almost surely, 2^38394129803 is an apocalyptic number.

38394129803 is a deficient number, since it is larger than the sum of its proper divisors (1).

38394129803 is an equidigital number, since it uses as much as digits as its factorization.

38394129803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 38394129803 in words is "thirty-eight billion, three hundred ninety-four million, one hundred twenty-nine thousand, eight hundred three".