19935192245 has 18 divisors (see below), whose sum is σ = 24114323394. Its totient is φ = 15821110080.

The previous prime is 19935192229. The next prime is 19935192253. The reversal of 19935192245 is 54229153991.

It can be written as a sum of positive squares in 3 ways, for example, as 293764 + 19934898481 = 542^2 + 141191^2 .

It is not a de Polignac number, because 19935192245 - 2⁴ = 19935192229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19935192193 and 19935192202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73561460 + ... + 73561730.

It is an arithmetic number, because the mean of its divisors is an integer number (1339684633).

Almost surely, 2^19935192245 is an apocalyptic number.

It is an amenable number.

19935192245 is a deficient number, since it is larger than the sum of its proper divisors (4179131149).

19935192245 is an frugal number, since it uses more digits than its factorization.

19935192245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 509 counting only the distinct ones).

The product of its digits is 874800, while the sum is 50.

The spelling of 19935192245 in words is "nineteen billion, nine hundred thirty-five million, one hundred ninety-two thousand, two hundred forty-five".