77208468042 has 8 divisors (see below), whose sum is σ = 154416936096. Its totient is φ = 25736156012.

The previous prime is 77208468037. The next prime is 77208468119. The reversal of 77208468042 is 24086480277.

It is a happy number.

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

77208468042 is an admirable number.

It is a super-2 number, since 2×77208468042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77208467982 and 77208468000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6434038998 + ... + 6434039009.

It is an arithmetic number, because the mean of its divisors is an integer number (19302117012).

Almost surely, 2^77208468042 is an apocalyptic number.

77208468042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77208468042 is a wasteful number, since it uses less digits than its factorization.

77208468042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12868078012.

The product of its (nonzero) digits is 1204224, while the sum is 48.

The spelling of 77208468042 in words is "seventy-seven billion, two hundred eight million, four hundred sixty-eight thousand, forty-two".