1903342603439 has 16 divisors (see below), whose sum is σ = 1949788164096. Its totient is φ = 1857153105600.

The previous prime is 1903342603433. The next prime is 1903342603447. The reversal of 1903342603439 is 9343062433091.

It is a cyclic number.

It is not a de Polignac number, because 1903342603439 - 2¹² = 1903342599343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1903342603393 and 1903342603402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1903342603433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21676154 + ... + 21763784.

It is an arithmetic number, because the mean of its divisors is an integer number (121861760256).

Almost surely, 2^{1903342603439} is an apocalyptic number.

1903342603439 is a deficient number, since it is larger than the sum of its proper divisors (46445560657).

1903342603439 is an equidigital number, since it uses as much as digits as its factorization.

1903342603439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89086.

The product of its (nonzero) digits is 1259712, while the sum is 47.

The spelling of 1903342603439 in words is "one trillion, nine hundred three billion, three hundred forty-two million, six hundred three thousand, four hundred thirty-nine".