61319123793 has 8 divisors (see below), whose sum is σ = 90843146400. Its totient is φ = 40879415844.

The previous prime is 61319123783. The next prime is 61319123837. The reversal of 61319123793 is 39732191316.

61319123793 is a `hidden beast` number, since 613 + 1 + 9 + 1 + 23 + 7 + 9 + 3 = 666.

It is not a de Polignac number, because 61319123793 - 2¹⁶ = 61319058257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61319123783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135539303 + ... + 1135539356.

It is an arithmetic number, because the mean of its divisors is an integer number (11355393300).

Almost surely, 2^61319123793 is an apocalyptic number.

It is an amenable number.

61319123793 is a deficient number, since it is larger than the sum of its proper divisors (29524022607).

61319123793 is a wasteful number, since it uses less digits than its factorization.

61319123793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271078668 (or 2271078662 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The spelling of 61319123793 in words is "sixty-one billion, three hundred nineteen million, one hundred twenty-three thousand, seven hundred ninety-three".