76663716373 has 4 divisors (see below), whose sum is σ = 76667815840. Its totient is φ = 76659616908.

The previous prime is 76663716361. The next prime is 76663716407. The reversal of 76663716373 is 37361736667.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76663716373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76663716473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021553 + ... + 2059126.

It is an arithmetic number, because the mean of its divisors is an integer number (19166953960).

Almost surely, 2^76663716373 is an apocalyptic number.

It is an amenable number.

76663716373 is a deficient number, since it is larger than the sum of its proper divisors (4099467).

76663716373 is a wasteful number, since it uses less digits than its factorization.

76663716373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099466.

The product of its digits is 12002256, while the sum is 55.

The spelling of 76663716373 in words is "seventy-six billion, six hundred sixty-three million, seven hundred sixteen thousand, three hundred seventy-three".