197072185705 has 16 divisors (see below), whose sum is σ = 237097860480. Its totient is φ = 157250559232.

The previous prime is 197072185697. The next prime is 197072185727. The reversal of 197072185705 is 507581270791.

It is a cyclic number.

It is not a de Polignac number, because 197072185705 - 2³ = 197072185697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5626236 + ... + 5661154.

It is an arithmetic number, because the mean of its divisors is an integer number (14818616280).

Almost surely, 2^197072185705 is an apocalyptic number.

It is an amenable number.

197072185705 is a deficient number, since it is larger than the sum of its proper divisors (40025674775).

197072185705 is a wasteful number, since it uses less digits than its factorization.

197072185705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37808.

The product of its (nonzero) digits is 1234800, while the sum is 52.

The spelling of 197072185705 in words is "one hundred ninety-seven billion, seventy-two million, one hundred eighty-five thousand, seven hundred five".