195148019460 has 96 divisors (see below), whose sum is σ = 555838924032. Its totient is φ = 51143339520.

The previous prime is 195148019449. The next prime is 195148019483. The reversal of 195148019460 is 64910841591.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4454382 + ... + 4497978.

It is an arithmetic number, because the mean of its divisors is an integer number (5789988792).

Almost surely, 2^195148019460 is an apocalyptic number.

195148019460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195148019460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277919462016).

195148019460 is an abundant number, since it is smaller than the sum of its proper divisors (360690904572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195148019460 is a wasteful number, since it uses less digits than its factorization.

195148019460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44893 (or 44891 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 195148019460 in words is "one hundred ninety-five billion, one hundred forty-eight million, nineteen thousand, four hundred sixty".