77241012 has 12 divisors (see below), whose sum is σ = 180229056. Its totient is φ = 25747000.

The previous prime is 77241001. The next prime is 77241041. The reversal of 77241012 is 21014277.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 3218364 + ... + 3218387.

It is an arithmetic number, because the mean of its divisors is an integer number (15019088).

Almost surely, 2^77241012 is an apocalyptic number.

It is an amenable number.

77241012 is an abundant number, since it is smaller than the sum of its proper divisors (102988044).

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

77241012 is a wasteful number, since it uses less digits than its factorization.

77241012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436758 (or 6436756 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 77241012 is about 8788.6865912945. The cubic root of 77241012 is about 425.8754953660.

Adding to 77241012 its reverse (21014277), we get a palindrome (98255289).

The spelling of 77241012 in words is "seventy-seven million, two hundred forty-one thousand, twelve".