19796407245 has 24 divisors (see below), whose sum is σ = 34395310872. Its totient is φ = 10532995200.

The previous prime is 19796407243. The next prime is 19796407259. The reversal of 19796407245 is 54270469791.

19796407245 is a `hidden beast` number, since 197 + 9 + 6 + 407 + 2 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1811183364 + 17985223881 = 42558^2 + 134109^2 .

It is not a de Polignac number, because 19796407245 - 2¹ = 19796407243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19796407191 and 19796407200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19796407243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503526 + ... + 541415.

It is an arithmetic number, because the mean of its divisors is an integer number (1433137953).

Almost surely, 2^19796407245 is an apocalyptic number.

19796407245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19796407245 is a deficient number, since it is larger than the sum of its proper divisors (14598903627).

19796407245 is a wasteful number, since it uses less digits than its factorization.

19796407245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045373 (or 1045370 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 19796407245 in words is "nineteen billion, seven hundred ninety-six million, four hundred seven thousand, two hundred forty-five".