194912652653 has 4 divisors (see below), whose sum is σ = 196805008608. Its totient is φ = 193020296700.

The previous prime is 194912652589. The next prime is 194912652707. The reversal of 194912652653 is 356256219491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 194912652653 - 2⁶ = 194912652589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 194912652595 and 194912652604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194912652553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946177823 + ... + 946178028.

It is an arithmetic number, because the mean of its divisors is an integer number (49201252152).

Almost surely, 2^194912652653 is an apocalyptic number.

It is an amenable number.

194912652653 is a deficient number, since it is larger than the sum of its proper divisors (1892355955).

194912652653 is a wasteful number, since it uses less digits than its factorization.

194912652653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892355954.

The product of its digits is 3499200, while the sum is 53.

The spelling of 194912652653 in words is "one hundred ninety-four billion, nine hundred twelve million, six hundred fifty-two thousand, six hundred fifty-three".