99435887137 has 2 divisors, whose sum is σ = 99435887138. Its totient is φ = 99435887136.

The previous prime is 99435887129. The next prime is 99435887141. The reversal of 99435887137 is 73178853499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94602995776 + 4832891361 = 307576^2 + 69519^2 .

It is a cyclic number.

It is not a de Polignac number, because 99435887137 - 2³ = 99435887129 is a prime.

It is not a weakly prime, because it can be changed into another prime (99435887147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49717943568 + 49717943569.

It is an arithmetic number, because the mean of its divisors is an integer number (49717943569).

Almost surely, 2^99435887137 is an apocalyptic number.

It is an amenable number.

99435887137 is a deficient number, since it is larger than the sum of its proper divisors (1).

99435887137 is an equidigital number, since it uses as much as digits as its factorization.

99435887137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 64.

The spelling of 99435887137 in words is "ninety-nine billion, four hundred thirty-five million, eight hundred eighty-seven thousand, one hundred thirty-seven".