77733716042 has 8 divisors (see below), whose sum is σ = 116696387556. Its totient is φ = 38834920192.

The previous prime is 77733716029. The next prime is 77733716083. The reversal of 77733716042 is 24061733777.

It can be written as a sum of positive squares in 2 ways, for example, as 71449824601 + 6283891441 = 267301^2 + 79271^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15965873 + ... + 15970740.

Almost surely, 2^77733716042 is an apocalyptic number.

77733716042 is a deficient number, since it is larger than the sum of its proper divisors (38962671514).

77733716042 is a wasteful number, since it uses less digits than its factorization.

77733716042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31937832.

The product of its (nonzero) digits is 1037232, while the sum is 47.

The spelling of 77733716042 in words is "seventy-seven billion, seven hundred thirty-three million, seven hundred sixteen thousand, forty-two".