195902399481 has 8 divisors (see below), whose sum is σ = 261233323104. Its totient is φ = 130586537760.

The previous prime is 195902399447. The next prime is 195902399509. The reversal of 195902399481 is 184993209591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195902399481 - 2⁹ = 195902398969 is a prime.

It is a super-2 number, since 2×195902399481² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (195902392481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3735091 + ... + 3787176.

It is an arithmetic number, because the mean of its divisors is an integer number (32654165388).

Almost surely, 2^195902399481 is an apocalyptic number.

It is an amenable number.

195902399481 is a deficient number, since it is larger than the sum of its proper divisors (65330923623).

195902399481 is an equidigital number, since it uses as much as digits as its factorization.

195902399481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530951.

The product of its (nonzero) digits is 6298560, while the sum is 60.

The spelling of 195902399481 in words is "one hundred ninety-five billion, nine hundred two million, three hundred ninety-nine thousand, four hundred eighty-one".