77781047114443 has 8 divisors (see below), whose sum is σ = 79615280158128. Its totient is φ = 75947967320064.

The previous prime is 77781047114423. The next prime is 77781047114467. The reversal of 77781047114443 is 34441174018777.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77781047114443 - 2¹⁷ = 77781046983371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77781047114423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288175846 + ... + 288445627.

It is an arithmetic number, because the mean of its divisors is an integer number (9951910019766).

Almost surely, 2^{77781047114443} is an apocalyptic number.

77781047114443 is a deficient number, since it is larger than the sum of its proper divisors (1834233043685).

77781047114443 is a wasteful number, since it uses less digits than its factorization.

77781047114443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576624653.

The product of its (nonzero) digits is 14751744, while the sum is 58.

The spelling of 77781047114443 in words is "seventy-seven trillion, seven hundred eighty-one billion, forty-seven million, one hundred fourteen thousand, four hundred forty-three".