197361870261 has 8 divisors (see below), whose sum is σ = 263774219424. Its totient is φ = 131262050640.

The previous prime is 197361870247. The next prime is 197361870271. The reversal of 197361870261 is 162078163791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197361870261 - 2⁵ = 197361870229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197361870271) 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, 78130911 + ... + 78133436.

It is an arithmetic number, because the mean of its divisors is an integer number (32971777428).

Almost surely, 2^197361870261 is an apocalyptic number.

It is an amenable number.

197361870261 is a deficient number, since it is larger than the sum of its proper divisors (66412349163).

197361870261 is a wasteful number, since it uses less digits than its factorization.

197361870261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156264771.

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 197361870261 in words is "one hundred ninety-seven billion, three hundred sixty-one million, eight hundred seventy thousand, two hundred sixty-one".