99238261583497 has 2 divisors, whose sum is σ = 99238261583498. Its totient is φ = 99238261583496.

The previous prime is 99238261583449. The next prime is 99238261583507. The reversal of 99238261583497 is 79438516283299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93138403878976 + 6099857704521 = 9650824^2 + 2469789^2 .

It is a cyclic number.

It is not a de Polignac number, because 99238261583497 - 2³⁵ = 99203901845129 is a prime.

It is a super-2 number, since 2×99238261583497² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99238261383497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49619130791748 + 49619130791749.

It is an arithmetic number, because the mean of its divisors is an integer number (49619130791749).

Almost surely, 2^{99238261583497} is an apocalyptic number.

It is an amenable number.

99238261583497 is a deficient number, since it is larger than the sum of its proper divisors (1).

99238261583497 is an equidigital number, since it uses as much as digits as its factorization.

99238261583497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1410877440, while the sum is 76.

The spelling of 99238261583497 in words is "ninety-nine trillion, two hundred thirty-eight billion, two hundred sixty-one million, five hundred eighty-three thousand, four hundred ninety-seven".