197498842479 has 12 divisors (see below), whose sum is σ = 285287912832. Its totient is φ = 131660445600.

The previous prime is 197498842469. The next prime is 197498842481. The reversal of 197498842479 is 974248894791.

197498842479 is a `hidden beast` number, since 1 + 9 + 74 + 9 + 8 + 84 + 2 + 479 = 666.

It is not a de Polignac number, because 197498842479 - 2⁷ = 197498842351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197498842469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218127 + ... + 665264.

It is an arithmetic number, because the mean of its divisors is an integer number (23773992736).

Almost surely, 2^197498842479 is an apocalyptic number.

197498842479 is a deficient number, since it is larger than the sum of its proper divisors (87789070353).

197498842479 is a wasteful number, since it uses less digits than its factorization.

197498842479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908238 (or 908235 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 72.

The spelling of 197498842479 in words is "one hundred ninety-seven billion, four hundred ninety-eight million, eight hundred forty-two thousand, four hundred seventy-nine".