71839099417 has 2 divisors, whose sum is σ = 71839099418. Its totient is φ = 71839099416.

The previous prime is 71839099403. The next prime is 71839099457. The reversal of 71839099417 is 71499093817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70790052096 + 1049047321 = 266064^2 + 32389^2 .

It is a cyclic number.

It is not a de Polignac number, because 71839099417 - 2³¹ = 69691615769 is a prime.

It is a super-3 number, since 3×71839099417³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (71839099457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35919549708 + 35919549709.

It is an arithmetic number, because the mean of its divisors is an integer number (35919549709).

Almost surely, 2^71839099417 is an apocalyptic number.

It is an amenable number.

71839099417 is a deficient number, since it is larger than the sum of its proper divisors (1).

71839099417 is an equidigital number, since it uses as much as digits as its factorization.

71839099417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 58.

The spelling of 71839099417 in words is "seventy-one billion, eight hundred thirty-nine million, ninety-nine thousand, four hundred seventeen".