77613526336 has 14 divisors (see below), whose sum is σ = 154014341450. Its totient is φ = 38806763136.

The previous prime is 77613526241. The next prime is 77613526357. The reversal of 77613526336 is 63362531677.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46029127936 + 31584398400 = 214544^2 + 177720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77613526336.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606355611 + ... + 606355738.

Almost surely, 2^77613526336 is an apocalyptic number.

It is an amenable number.

77613526336 is a deficient number, since it is larger than the sum of its proper divisors (76400815114).

77613526336 is a wasteful number, since it uses less digits than its factorization.

77613526336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212711361 (or 1212711351 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 49.

The spelling of 77613526336 in words is "seventy-seven billion, six hundred thirteen million, five hundred twenty-six thousand, three hundred thirty-six".