197452254791 has 8 divisors (see below), whose sum is σ = 215412960000. Its totient is φ = 179493299640.

The previous prime is 197452254709. The next prime is 197452254809.

197452254791 is nontrivially palindromic in base 10.

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 197452254791 - 2¹⁰ = 197452253767 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 (197452257791) 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, 195791 + ... + 658208.

It is an arithmetic number, because the mean of its divisors is an integer number (26926620000).

Almost surely, 2^197452254791 is an apocalyptic number.

197452254791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

197452254791 is a deficient number, since it is larger than the sum of its proper divisors (17960705209).

197452254791 is a wasteful number, since it uses less digits than its factorization.

197452254791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875029.

The product of its digits is 6350400, while the sum is 56.

The spelling of 197452254791 in words is "one hundred ninety-seven billion, four hundred fifty-two million, two hundred fifty-four thousand, seven hundred ninety-one".