849610071049 has 2 divisors, whose sum is σ = 849610071050. Its totient is φ = 849610071048.

The previous prime is 849610071007. The next prime is 849610071067. The reversal of 849610071049 is 940170016948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 833282342649 + 16327728400 = 912843^2 + 127780^2 .

It is a cyclic number.

It is not a de Polignac number, because 849610071049 - 2⁷ = 849610070921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 849610070993 and 849610071011.

It is not a weakly prime, because it can be changed into another prime (849610071449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424805035524 + 424805035525.

It is an arithmetic number, because the mean of its divisors is an integer number (424805035525).

Almost surely, 2^849610071049 is an apocalyptic number.

It is an amenable number.

849610071049 is a deficient number, since it is larger than the sum of its proper divisors (1).

849610071049 is an equidigital number, since it uses as much as digits as its factorization.

849610071049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 849610071049 in words is "eight hundred forty-nine billion, six hundred ten million, seventy-one thousand, forty-nine".