79853998337 has 2 divisors, whose sum is σ = 79853998338. Its totient is φ = 79853998336.

The previous prime is 79853998331. The next prime is 79853998339. The reversal of 79853998337 is 73389935897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59964255376 + 19889742961 = 244876^2 + 141031^2 .

It is a cyclic number.

It is not a de Polignac number, because 79853998337 - 2¹⁴ = 79853981953 is a prime.

It is a super-2 number, since 2×79853998337² (a number of 23 digits) contains 22 as substring.

Together with 79853998339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79853998331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39926999168 + 39926999169.

It is an arithmetic number, because the mean of its divisors is an integer number (39926999169).

Almost surely, 2^79853998337 is an apocalyptic number.

It is an amenable number.

79853998337 is a deficient number, since it is larger than the sum of its proper divisors (1).

79853998337 is an equidigital number, since it uses as much as digits as its factorization.

79853998337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308629440, while the sum is 71.

The spelling of 79853998337 in words is "seventy-nine billion, eight hundred fifty-three million, nine hundred ninety-eight thousand, three hundred thirty-seven".