38820129122319 has 4 divisors (see below), whose sum is σ = 51760172163096. Its totient is φ = 25880086081544.

The previous prime is 38820129122309. The next prime is 38820129122351. The reversal of 38820129122319 is 91322192102883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38820129122319 - 2¹² = 38820129118223 is a prime.

It is a super-2 number, since 2×38820129122319² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38820129122309) 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 in 3 ways as a sum of consecutive naturals, for example, 6470021520384 + ... + 6470021520389.

It is an arithmetic number, because the mean of its divisors is an integer number (12940043040774).

Almost surely, 2^{38820129122319} is an apocalyptic number.

38820129122319 is a deficient number, since it is larger than the sum of its proper divisors (12940043040777).

38820129122319 is a wasteful number, since it uses less digits than its factorization.

38820129122319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12940043040776.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 38820129122319 in words is "thirty-eight trillion, eight hundred twenty billion, one hundred twenty-nine million, one hundred twenty-two thousand, three hundred nineteen".