39139538903 has 4 divisors (see below), whose sum is σ = 39161791680. Its totient is φ = 39117286128.

The previous prime is 39139538899. The next prime is 39139538939. The reversal of 39139538903 is 30983593193.

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 39139538903 - 2² = 39139538899 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 (39139538983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11123750 + ... + 11127267.

It is an arithmetic number, because the mean of its divisors is an integer number (9790447920).

Almost surely, 2^39139538903 is an apocalyptic number.

39139538903 is a deficient number, since it is larger than the sum of its proper divisors (22252777).

39139538903 is a wasteful number, since it uses less digits than its factorization.

39139538903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22252776.

The product of its (nonzero) digits is 2361960, while the sum is 53.

The spelling of 39139538903 in words is "thirty-nine billion, one hundred thirty-nine million, five hundred thirty-eight thousand, nine hundred three".