76633766733668 has 24 divisors (see below), whose sum is σ = 134162072478840. Its totient is φ = 38301746711040.

The previous prime is 76633766733637. The next prime is 76633766733673. The reversal of 76633766733668 is 86633766733667.

It can be written as a sum of positive squares in 4 ways, for example, as 5467029596224 + 71166737137444 = 2338168^2 + 8436038^2 .

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, 894991898 + ... + 895077518.

It is an arithmetic number, because the mean of its divisors is an integer number (5590086353285).

Almost surely, 2^{76633766733668} is an apocalyptic number.

It is an amenable number.

76633766733668 is a deficient number, since it is larger than the sum of its proper divisors (57528305745172).

76633766733668 is a wasteful number, since it uses less digits than its factorization.

76633766733668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171407 (or 171405 counting only the distinct ones).

The product of its digits is 10369949184, while the sum is 77.

Subtracting 76633766733668 from its reverse (86633766733667), we obtain a palindrome (9999999999999).

The spelling of 76633766733668 in words is "seventy-six trillion, six hundred thirty-three billion, seven hundred sixty-six million, seven hundred thirty-three thousand, six hundred sixty-eight".