83705953739497 has 2 divisors, whose sum is σ = 83705953739498. Its totient is φ = 83705953739496.

The previous prime is 83705953739479. The next prime is 83705953739501. The reversal of 83705953739497 is 79493735950738.

Together with previous prime (83705953739479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63073791493801 + 20632162245696 = 7941901^2 + 4542264^2 .

It is a cyclic number.

It is not a de Polignac number, because 83705953739497 - 2³⁹ = 83156197925609 is a prime.

It is not a weakly prime, because it can be changed into another prime (83705953739417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41852976869748 + 41852976869749.

It is an arithmetic number, because the mean of its divisors is an integer number (41852976869749).

Almost surely, 2^{83705953739497} is an apocalyptic number.

It is an amenable number.

83705953739497 is a deficient number, since it is larger than the sum of its proper divisors (1).

83705953739497 is an equidigital number, since it uses as much as digits as its factorization.

83705953739497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5401015200, while the sum is 79.

The spelling of 83705953739497 in words is "eighty-three trillion, seven hundred five billion, nine hundred fifty-three million, seven hundred thirty-nine thousand, four hundred ninety-seven".