61773798393 has 16 divisors (see below), whose sum is σ = 96333409600. Its totient is φ = 39015030240.

The previous prime is 61773798379. The next prime is 61773798407. The reversal of 61773798393 is 39389737716.

61773798393 is a `hidden beast` number, since 6 + 177 + 3 + 79 + 8 + 393 = 666.

61773798393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61773798379) and next prime (61773798407).

It is not a de Polignac number, because 61773798393 - 2²⁰ = 61772749817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61773798393.

It is not an unprimeable number, because it can be changed into a prime (61773798343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60207868 + ... + 60208893.

It is an arithmetic number, because the mean of its divisors is an integer number (6020838100).

Almost surely, 2^61773798393 is an apocalyptic number.

It is an amenable number.

61773798393 is a deficient number, since it is larger than the sum of its proper divisors (34559611207).

61773798393 is a wasteful number, since it uses less digits than its factorization.

61773798393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120416789 (or 120416783 counting only the distinct ones).

The product of its digits is 36006768, while the sum is 63.

The spelling of 61773798393 in words is "sixty-one billion, seven hundred seventy-three million, seven hundred ninety-eight thousand, three hundred ninety-three".