77425334502 has 16 divisors (see below), whose sum is σ = 154981138752. Its totient is φ = 25786699880.

The previous prime is 77425334491. The next prime is 77425334507. The reversal of 77425334502 is 20543352477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77425334507) 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 7 ways as a sum of consecutive naturals, for example, 5428524 + ... + 5442767.

It is an arithmetic number, because the mean of its divisors is an integer number (9686321172).

Almost surely, 2^77425334502 is an apocalyptic number.

77425334502 is an abundant number, since it is smaller than the sum of its proper divisors (77555804250).

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

77425334502 is a wasteful number, since it uses less digits than its factorization.

77425334502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872483.

The product of its (nonzero) digits is 705600, while the sum is 42.

Adding to 77425334502 its reverse (20543352477), we get a palindrome (97968686979).

The spelling of 77425334502 in words is "seventy-seven billion, four hundred twenty-five million, three hundred thirty-four thousand, five hundred two".