197449268903 has 4 divisors (see below), whose sum is σ = 197799978648. Its totient is φ = 197098559160.

The previous prime is 197449268893. The next prime is 197449268917. The reversal of 197449268903 is 309862944791.

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 197449268903 - 2²⁰ = 197448220327 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 (197449268923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175354028 + ... + 175355153.

It is an arithmetic number, because the mean of its divisors is an integer number (49449994662).

Almost surely, 2^197449268903 is an apocalyptic number.

197449268903 is a deficient number, since it is larger than the sum of its proper divisors (350709745).

197449268903 is an equidigital number, since it uses as much as digits as its factorization.

197449268903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350709744.

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 197449268903 in words is "one hundred ninety-seven billion, four hundred forty-nine million, two hundred sixty-eight thousand, nine hundred three".