903979831361 has 4 divisors (see below), whose sum is σ = 906365002800. Its totient is φ = 901594659924.

The previous prime is 903979831343. The next prime is 903979831369. The reversal of 903979831361 is 163138979309.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-903979831361 is a prime.

It is a super-2 number, since 2×903979831361² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 903979831361.

It is not an unprimeable number, because it can be changed into a prime (903979831369) 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, 1192585151 + ... + 1192585908.

It is an arithmetic number, because the mean of its divisors is an integer number (226591250700).

Almost surely, 2^903979831361 is an apocalyptic number.

It is an amenable number.

903979831361 is a deficient number, since it is larger than the sum of its proper divisors (2385171439).

903979831361 is a wasteful number, since it uses less digits than its factorization.

903979831361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385171438.

The product of its (nonzero) digits is 6613488, while the sum is 59.

The spelling of 903979831361 in words is "nine hundred three billion, nine hundred seventy-nine million, eight hundred thirty-one thousand, three hundred sixty-one".