197463765749 has 4 divisors (see below), whose sum is σ = 197466150336. Its totient is φ = 197461381164.

The previous prime is 197463765713. The next prime is 197463765767. The reversal of 197463765749 is 947567364791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197463765749 - 2⁸ = 197463765493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197463767749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063439 + ... + 1235244.

It is an arithmetic number, because the mean of its divisors is an integer number (49366537584).

Almost surely, 2^197463765749 is an apocalyptic number.

It is an amenable number.

197463765749 is a deficient number, since it is larger than the sum of its proper divisors (2384587).

197463765749 is an equidigital number, since it uses as much as digits as its factorization.

197463765749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384586.

The product of its digits is 240045120, while the sum is 68.

The spelling of 197463765749 in words is "one hundred ninety-seven billion, four hundred sixty-three million, seven hundred sixty-five thousand, seven hundred forty-nine".