195769081764 has 135 divisors (see below), whose sum is σ = 523901364987. Its totient is φ = 63745808976.

The previous prime is 195769081741. The next prime is 195769081789. The reversal of 195769081764 is 467180967591.

The square root of 195769081764 is 442458.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 374319207 + ... + 374319729.

Almost surely, 2^195769081764 is an apocalyptic number.

195769081764 is the 442458-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195769081764

195769081764 is an abundant number, since it is smaller than the sum of its proper divisors (328132283223).

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

195769081764 is an frugal number, since it uses more digits than its factorization.

195769081764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 195769081764 in words is "one hundred ninety-five billion, seven hundred sixty-nine million, eighty-one thousand, seven hundred sixty-four".