99988763997 has 16 divisors (see below), whose sum is σ = 134627725440. Its totient is φ = 66004634112.

The previous prime is 99988763971. The next prime is 99988764011. The reversal of 99988763997 is 79936788999.

It is not a de Polignac number, because 99988763997 - 2²⁸ = 99720328541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99988761997) 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 15 ways as a sum of consecutive naturals, for example, 5097673 + ... + 5117249.

It is an arithmetic number, because the mean of its divisors is an integer number (8414232840).

Almost surely, 2^99988763997 is an apocalyptic number.

It is an amenable number.

99988763997 is a deficient number, since it is larger than the sum of its proper divisors (34638961443).

99988763997 is a wasteful number, since it uses less digits than its factorization.

99988763997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36212.

The product of its digits is 3333197952, while the sum is 84.

The spelling of 99988763997 in words is "ninety-nine billion, nine hundred eighty-eight million, seven hundred sixty-three thousand, nine hundred ninety-seven".