38139019151 has 4 divisors (see below), whose sum is σ = 38516633304. Its totient is φ = 37761405000.

The previous prime is 38139019103. The next prime is 38139019157. The reversal of 38139019151 is 15191093183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15191093183 = 7 ⋅2170156169.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38139019151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38139019099 and 38139019108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38139019157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188806925 + ... + 188807126.

It is an arithmetic number, because the mean of its divisors is an integer number (9629158326).

Almost surely, 2^38139019151 is an apocalyptic number.

38139019151 is a deficient number, since it is larger than the sum of its proper divisors (377614153).

38139019151 is a wasteful number, since it uses less digits than its factorization.

38139019151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377614152.

The product of its (nonzero) digits is 29160, while the sum is 41.

The spelling of 38139019151 in words is "thirty-eight billion, one hundred thirty-nine million, nineteen thousand, one hundred fifty-one".