99988764079 has 2 divisors, whose sum is σ = 99988764080. Its totient is φ = 99988764078.

The previous prime is 99988764077. The next prime is 99988764107. The reversal of 99988764079 is 97046788999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99988764079 - 2¹ = 99988764077 is a prime.

Together with 99988764077, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 99988763996 and 99988764014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99988764077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49994382039 + 49994382040.

It is an arithmetic number, because the mean of its divisors is an integer number (49994382040).

Almost surely, 2^99988764079 is an apocalyptic number.

99988764079 is a deficient number, since it is larger than the sum of its proper divisors (1).

99988764079 is an equidigital number, since it uses as much as digits as its factorization.

99988764079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493807104, while the sum is 76.

The spelling of 99988764079 in words is "ninety-nine billion, nine hundred eighty-eight million, seven hundred sixty-four thousand, seventy-nine".