77694627770 has 16 divisors (see below), whose sum is σ = 141937649568. Its totient is φ = 30614002320.

The previous prime is 77694627763. The next prime is 77694627793. The reversal of 77694627770 is 7772649677.

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 7 ways as a sum of consecutive naturals, for example, 57980396 + ... + 57981735.

It is an arithmetic number, because the mean of its divisors is an integer number (8871103098).

Almost surely, 2^77694627770 is an apocalyptic number.

77694627770 is a deficient number, since it is larger than the sum of its proper divisors (64243021798).

77694627770 is a wasteful number, since it uses less digits than its factorization.

77694627770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115962205.

The product of its (nonzero) digits is 43563744, while the sum is 62.

The spelling of 77694627770 in words is "seventy-seven billion, six hundred ninety-four million, six hundred twenty-seven thousand, seven hundred seventy".