99990653447 has 2 divisors, whose sum is σ = 99990653448. Its totient is φ = 99990653446.

The previous prime is 99990653359. The next prime is 99990653519. The reversal of 99990653447 is 74435609999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99990653447 - 2¹⁶ = 99990587911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99990653947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49995326723 + 49995326724.

It is an arithmetic number, because the mean of its divisors is an integer number (49995326724).

Almost surely, 2^99990653447 is an apocalyptic number.

99990653447 is a deficient number, since it is larger than the sum of its proper divisors (1).

99990653447 is an equidigital number, since it uses as much as digits as its factorization.

99990653447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66134880, while the sum is 65.

The spelling of 99990653447 in words is "ninety-nine billion, nine hundred ninety million, six hundred fifty-three thousand, four hundred forty-seven".