76681983523 has 2 divisors, whose sum is σ = 76681983524. Its totient is φ = 76681983522.

The previous prime is 76681983503. The next prime is 76681983551. The reversal of 76681983523 is 32538918667.

It is a weak prime.

It is an emirp because it is prime and its reverse (32538918667) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76681983523 is a prime.

It is not a weakly prime, because it can be changed into another prime (76681983503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38340991761 + 38340991762.

It is an arithmetic number, because the mean of its divisors is an integer number (38340991762).

Almost surely, 2^76681983523 is an apocalyptic number.

76681983523 is a deficient number, since it is larger than the sum of its proper divisors (1).

76681983523 is an equidigital number, since it uses as much as digits as its factorization.

76681983523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 58.

The spelling of 76681983523 in words is "seventy-six billion, six hundred eighty-one million, nine hundred eighty-three thousand, five hundred twenty-three".