195249780748 has 48 divisors (see below), whose sum is σ = 378590284800. Its totient is φ = 87365940480.

The previous prime is 195249780707. The next prime is 195249780767. The reversal of 195249780748 is 847087942591.

195249780748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 195249780748.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088073 + ... + 1254751.

It is an arithmetic number, because the mean of its divisors is an integer number (7887297600).

Almost surely, 2^195249780748 is an apocalyptic number.

It is an amenable number.

195249780748 is a deficient number, since it is larger than the sum of its proper divisors (183340504052).

195249780748 is a wasteful number, since it uses less digits than its factorization.

195249780748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167110 (or 167108 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 195249780748 in words is "one hundred ninety-five billion, two hundred forty-nine million, seven hundred eighty thousand, seven hundred forty-eight".