99999999763 has 2 divisors, whose sum is σ = 99999999764. Its totient is φ = 99999999762.

The previous prime is 99999999761. The next prime is 99999999769. The reversal of 99999999763 is 36799999999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99999999763 - 2¹ = 99999999761 is a prime.

Together with 99999999761, it forms a pair of twin primes.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (99999999761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999999881 + 49999999882.

It is an arithmetic number, because the mean of its divisors is an integer number (49999999882).

Almost surely, 2^99999999763 is an apocalyptic number.

99999999763 is a deficient number, since it is larger than the sum of its proper divisors (1).

99999999763 is an equidigital number, since it uses as much as digits as its factorization.

99999999763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5423886846, while the sum is 88.

The spelling of 99999999763 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred sixty-three".