77753391079893 has 32 divisors (see below), whose sum is σ = 112751065190400. Its totient is φ = 47479734489600.

The previous prime is 77753391079877. The next prime is 77753391079913. The reversal of 77753391079893 is 39897019335777.

It is a happy number.

It is not a de Polignac number, because 77753391079893 - 2⁴ = 77753391079877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77753391079823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18238588 + ... + 22094181.

It is an arithmetic number, because the mean of its divisors is an integer number (3523470787200).

Almost surely, 2^{77753391079893} is an apocalyptic number.

It is an amenable number.

77753391079893 is a deficient number, since it is larger than the sum of its proper divisors (34997674110507).

77753391079893 is a wasteful number, since it uses less digits than its factorization.

77753391079893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40333913.

The product of its (nonzero) digits is 1890355320, while the sum is 78.

The spelling of 77753391079893 in words is "seventy-seven trillion, seven hundred fifty-three billion, three hundred ninety-one million, seventy-nine thousand, eight hundred ninety-three".