850450995601 has 15 divisors (see below), whose sum is σ = 903886807693. Its totient is φ = 800173628320.

The previous prime is 850450995599. The next prime is 850450995607. The reversal of 850450995601 is 106599054058.

The square root of 850450995601 is 922199.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 263940090001 + 586510905600 = 513751^2 + 765840^2 .

It is not a de Polignac number, because 850450995601 - 2¹ = 850450995599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850450995607) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 266513916 + ... + 266517106.

Almost surely, 2^850450995601 is an apocalyptic number.

850450995601 is the 922199-th square number.

850450995601 is the 461100-th centered octagonal number.

It is an amenable number.

850450995601 is a deficient number, since it is larger than the sum of its proper divisors (53435812092).

850450995601 is an frugal number, since it uses more digits than its factorization.

850450995601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6450 (or 3208 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 850450995601 in words is "eight hundred fifty billion, four hundred fifty million, nine hundred ninety-five thousand, six hundred one".