76663307663 has 4 divisors (see below), whose sum is σ = 77341744128. Its totient is φ = 75984871200.

The previous prime is 76663307641. The next prime is 76663307717. The reversal of 76663307663 is 36670336667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76663307663 - 2¹² = 76663303567 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 (76663357663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 339218063 + ... + 339218288.

It is an arithmetic number, because the mean of its divisors is an integer number (19335436032).

Almost surely, 2^76663307663 is an apocalyptic number.

76663307663 is a deficient number, since it is larger than the sum of its proper divisors (678436465).

76663307663 is a wasteful number, since it uses less digits than its factorization.

76663307663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678436464.

The product of its (nonzero) digits is 10287648, while the sum is 53.

The spelling of 76663307663 in words is "seventy-six billion, six hundred sixty-three million, three hundred seven thousand, six hundred sixty-three".