77065370530 has 96 divisors (see below), whose sum is σ = 154510733520. Its totient is φ = 27546624000.

The previous prime is 77065370497. The next prime is 77065370533. The reversal of 77065370530 is 3507356077.

It can be written as a sum of positive squares in 24 ways, for example, as 38696004369 + 38369366161 = 196713^2 + 195881^2 .

It is not an unprimeable number, because it can be changed into a prime (77065370533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18342430 + ... + 18346630.

Almost surely, 2^77065370530 is an apocalyptic number.

77065370530 is an abundant number, since it is smaller than the sum of its proper divisors (77445362990).

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

77065370530 is a wasteful number, since it uses less digits than its factorization.

77065370530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376 (or 4315 counting only the distinct ones).

The product of its (nonzero) digits is 463050, while the sum is 43.

The spelling of 77065370530 in words is "seventy-seven billion, sixty-five million, three hundred seventy thousand, five hundred thirty".