197961023293 has 16 divisors (see below), whose sum is σ = 218890742400. Its totient is φ = 177534607680.

The previous prime is 197961023263. The next prime is 197961023303. The reversal of 197961023293 is 392320169791.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 197961023293 - 2¹³ = 197961015101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197961023293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197961023203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85921 + ... + 635062.

It is an arithmetic number, because the mean of its divisors is an integer number (13680671400).

Almost surely, 2^197961023293 is an apocalyptic number.

It is an amenable number.

197961023293 is a deficient number, since it is larger than the sum of its proper divisors (20929719107).

197961023293 is a wasteful number, since it uses less digits than its factorization.

197961023293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721332.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 197961023293 in words is "one hundred ninety-seven billion, nine hundred sixty-one million, twenty-three thousand, two hundred ninety-three".