99247293617 has 2 divisors, whose sum is σ = 99247293618. Its totient is φ = 99247293616.

The previous prime is 99247293559. The next prime is 99247293653. The reversal of 99247293617 is 71639274299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62981423521 + 36265870096 = 250961^2 + 190436^2 .

It is a cyclic number.

It is not a de Polignac number, because 99247293617 - 2¹⁶ = 99247228081 is a prime.

It is not a weakly prime, because it can be changed into another prime (99247293917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49623646808 + 49623646809.

It is an arithmetic number, because the mean of its divisors is an integer number (49623646809).

Almost surely, 2^99247293617 is an apocalyptic number.

It is an amenable number.

99247293617 is a deficient number, since it is larger than the sum of its proper divisors (1).

99247293617 is an equidigital number, since it uses as much as digits as its factorization.

99247293617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 59.

The spelling of 99247293617 in words is "ninety-nine billion, two hundred forty-seven million, two hundred ninety-three thousand, six hundred seventeen".