77630203676 has 24 divisors (see below), whose sum is σ = 138238926000. Its totient is φ = 38134162944.

The previous prime is 77630203669. The next prime is 77630203699. The reversal of 77630203676 is 67630203677.

It is a self number, because there is not a number n which added to its sum of digits gives 77630203676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295340 + ... + 492428.

It is an arithmetic number, because the mean of its divisors is an integer number (5759955250).

Almost surely, 2^77630203676 is an apocalyptic number.

It is an amenable number.

77630203676 is a deficient number, since it is larger than the sum of its proper divisors (60608722324).

77630203676 is a wasteful number, since it uses less digits than its factorization.

77630203676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198821 (or 198819 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 47.

Subtracting from 77630203676 its reverse (67630203677), we obtain a palindrome (9999999999).

The spelling of 77630203676 in words is "seventy-seven billion, six hundred thirty million, two hundred three thousand, six hundred seventy-six".