194995997732 has 12 divisors (see below), whose sum is σ = 341352355596. Its totient is φ = 97466753280.

The previous prime is 194995997659. The next prime is 194995997759. The reversal of 194995997732 is 237799599491.

It can be written as a sum of positive squares in 2 ways, for example, as 98140599076 + 96855398656 = 313274^2 + 311216^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 194995997732.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7797353 + ... + 7822320.

It is an arithmetic number, because the mean of its divisors is an integer number (28446029633).

Almost surely, 2^194995997732 is an apocalyptic number.

It is an amenable number.

194995997732 is a deficient number, since it is larger than the sum of its proper divisors (146356357864).

194995997732 is a wasteful number, since it uses less digits than its factorization.

194995997732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15622798 (or 15622796 counting only the distinct ones).

The product of its digits is 347208120, while the sum is 74.

The spelling of 194995997732 in words is "one hundred ninety-four billion, nine hundred ninety-five million, nine hundred ninety-seven thousand, seven hundred thirty-two".