83208030691073 has 2 divisors, whose sum is σ = 83208030691074. Its totient is φ = 83208030691072.

The previous prime is 83208030691063. The next prime is 83208030691081. The reversal of 83208030691073 is 37019603080238.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83055936931009 + 152093760064 = 9113503^2 + 389992^2 .

It is a cyclic number.

It is not a de Polignac number, because 83208030691073 - 2¹⁰ = 83208030690049 is a prime.

It is not a weakly prime, because it can be changed into another prime (83208030691003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41604015345536 + 41604015345537.

It is an arithmetic number, because the mean of its divisors is an integer number (41604015345537).

Almost surely, 2^{83208030691073} is an apocalyptic number.

It is an amenable number.

83208030691073 is a deficient number, since it is larger than the sum of its proper divisors (1).

83208030691073 is an equidigital number, since it uses as much as digits as its factorization.

83208030691073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 83208030691073 in words is "eighty-three trillion, two hundred eight billion, thirty million, six hundred ninety-one thousand, seventy-three".