850835099501 has 2 divisors, whose sum is σ = 850835099502. Its totient is φ = 850835099500.

The previous prime is 850835099489. The next prime is 850835099503. The reversal of 850835099501 is 105990538058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470183118601 + 380651980900 = 685699^2 + 616970^2 .

It is a cyclic number.

It is not a de Polignac number, because 850835099501 - 2⁶ = 850835099437 is a prime.

Together with 850835099503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850835099503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425417549750 + 425417549751.

It is an arithmetic number, because the mean of its divisors is an integer number (425417549751).

Almost surely, 2^850835099501 is an apocalyptic number.

It is an amenable number.

850835099501 is a deficient number, since it is larger than the sum of its proper divisors (1).

850835099501 is an equidigital number, since it uses as much as digits as its factorization.

850835099501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 53.

The spelling of 850835099501 in words is "eight hundred fifty billion, eight hundred thirty-five million, ninety-nine thousand, five hundred one".