197719898008 has 72 divisors (see below), whose sum is σ = 382748967900. Its totient is φ = 95726615040.

The previous prime is 197719898003. The next prime is 197719898011. The reversal of 197719898008 is 800898917791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197719898003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 937061023 + ... + 937061233.

Almost surely, 2^197719898008 is an apocalyptic number.

It is an amenable number.

197719898008 is a deficient number, since it is larger than the sum of its proper divisors (185029069892).

197719898008 is an frugal number, since it uses more digits than its factorization.

197719898008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 67.

The spelling of 197719898008 in words is "one hundred ninety-seven billion, seven hundred nineteen million, eight hundred ninety-eight thousand, eight".