197440212000964 has 81 divisors (see below), whose sum is σ = 356830615442343. Its totient is φ = 95589143822016.

The previous prime is 197440212000949. The next prime is 197440212000971. The reversal of 197440212000964 is 469000212044791.

The square root of 197440212000964 is 14051342.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1646237831364 + 195793974169600 = 1283058^2 + 13992640^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 329616380337 + ... + 329616380935.

Almost surely, 2^{197440212000964} is an apocalyptic number.

197440212000964 is the 14051342-nd square number.

It is an amenable number.

197440212000964 is a deficient number, since it is larger than the sum of its proper divisors (159390403441379).

197440212000964 is an frugal number, since it uses more digits than its factorization.

197440212000964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 197440212000964 in words is "one hundred ninety-seven trillion, four hundred forty billion, two hundred twelve million, nine hundred sixty-four", and thus it is an aban number.