77085030242 has 32 divisors (see below), whose sum is σ = 131927806080. Its totient is φ = 33437733120.

The previous prime is 77085030241. The next prime is 77085030259. The reversal of 77085030242 is 24203058077.

It is a junction number, because it is equal to n+sod(n) for n = 77085030196 and 77085030205.

It is not an unprimeable number, because it can be changed into a prime (77085030241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43184 + ... + 395012.

It is an arithmetic number, because the mean of its divisors is an integer number (4122743940).

Almost surely, 2^77085030242 is an apocalyptic number.

77085030242 is a deficient number, since it is larger than the sum of its proper divisors (54842775838).

77085030242 is a wasteful number, since it uses less digits than its factorization.

77085030242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352298.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 77085030242 in words is "seventy-seven billion, eighty-five million, thirty thousand, two hundred forty-two".