76888634947 has 2 divisors, whose sum is σ = 76888634948. Its totient is φ = 76888634946.

The previous prime is 76888634929. The next prime is 76888635017. The reversal of 76888634947 is 74943688867.

It is an a-pointer prime, because the next prime (76888635017) can be obtained adding 76888634947 to its sum of digits (70).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76888634947 - 2⁷ = 76888634819 is a prime.

It is not a weakly prime, because it can be changed into another prime (76888334947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38444317473 + 38444317474.

It is an arithmetic number, because the mean of its divisors is an integer number (38444317474).

Almost surely, 2^76888634947 is an apocalyptic number.

76888634947 is a deficient number, since it is larger than the sum of its proper divisors (1).

76888634947 is an equidigital number, since it uses as much as digits as its factorization.

76888634947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 390168576, while the sum is 70.

The spelling of 76888634947 in words is "seventy-six billion, eight hundred eighty-eight million, six hundred thirty-four thousand, nine hundred forty-seven".