197924460457 has 8 divisors (see below), whose sum is σ = 209878480296. Its totient is φ = 186005041152.

The previous prime is 197924460431. The next prime is 197924460463. The reversal of 197924460457 is 754064429791.

It can be written as a sum of positive squares in 4 ways, for example, as 2019963136 + 195904497321 = 44944^2 + 442611^2 .

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 197924460457 - 2¹⁹ = 197923936169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197924460407) 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, 8638348 + ... + 8661229.

It is an arithmetic number, because the mean of its divisors is an integer number (26234810037).

Almost surely, 2^197924460457 is an apocalyptic number.

197924460457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

197924460457 is a deficient number, since it is larger than the sum of its proper divisors (11954019839).

197924460457 is a wasteful number, since it uses less digits than its factorization.

197924460457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17300267.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 197924460457 in words is "one hundred ninety-seven billion, nine hundred twenty-four million, four hundred sixty thousand, four hundred fifty-seven".