8999998951397 has 2 divisors, whose sum is σ = 8999998951398. Its totient is φ = 8999998951396.

The previous prime is 8999998951297. The next prime is 8999998951417. The reversal of 8999998951397 is 7931598999998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6660120879841 + 2339878071556 = 2580721^2 + 1529666^2 .

It is a cyclic number.

It is not a de Polignac number, because 8999998951397 - 2³⁴ = 8982819082213 is a prime.

It is a super-2 number, since 2×8999998951397² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8999998951297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4499999475698 + 4499999475699.

It is an arithmetic number, because the mean of its divisors is an integer number (4499999475699).

Almost surely, 2^{8999998951397} is an apocalyptic number.

It is an amenable number.

8999998951397 is a deficient number, since it is larger than the sum of its proper divisors (1).

8999998951397 is an equidigital number, since it uses as much as digits as its factorization.

8999998951397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32141551680, while the sum is 95.

The spelling of 8999998951397 in words is "eight trillion, nine hundred ninety-nine billion, nine hundred ninety-eight million, nine hundred fifty-one thousand, three hundred ninety-seven".