38138480437 has 4 divisors (see below), whose sum is σ = 38138887360. Its totient is φ = 38138073516.

The previous prime is 38138480431. The next prime is 38138480449. The reversal of 38138480437 is 73408483183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38138480437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38138480431) 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, 16114 + ... + 276652.

It is an arithmetic number, because the mean of its divisors is an integer number (9534721840).

Almost surely, 2^38138480437 is an apocalyptic number.

It is an amenable number.

38138480437 is a deficient number, since it is larger than the sum of its proper divisors (406923).

38138480437 is a wasteful number, since it uses less digits than its factorization.

38138480437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406922.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 38138480437 in words is "thirty-eight billion, one hundred thirty-eight million, four hundred eighty thousand, four hundred thirty-seven".