18903322131839 has 8 divisors (see below), whose sum is σ = 18966332793408. Its totient is φ = 18840388834080.

The previous prime is 18903322131833. The next prime is 18903322131853. The reversal of 18903322131839 is 93813122330981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18903322131839 - 2⁸ = 18903322131583 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 (18903322131833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18851432 + ... + 19828845.

It is an arithmetic number, because the mean of its divisors is an integer number (2370791599176).

Almost surely, 2^{18903322131839} is an apocalyptic number.

18903322131839 is a deficient number, since it is larger than the sum of its proper divisors (63010661569).

18903322131839 is a wasteful number, since it uses less digits than its factorization.

18903322131839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38681905.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 18903322131839 in words is "eighteen trillion, nine hundred three billion, three hundred twenty-two million, one hundred thirty-one thousand, eight hundred thirty-nine".