851263073 has 4 divisors (see below), whose sum is σ = 863968560. Its totient is φ = 838557588.

The previous prime is 851263057. The next prime is 851263079. The reversal of 851263073 is 370362158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 851263073 - 2⁴ = 851263057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851263079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6352643 + ... + 6352776.

It is an arithmetic number, because the mean of its divisors is an integer number (215992140).

Almost surely, 2^851263073 is an apocalyptic number.

It is an amenable number.

851263073 is a deficient number, since it is larger than the sum of its proper divisors (12705487).

851263073 is a wasteful number, since it uses less digits than its factorization.

851263073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12705486.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 851263073 is about 29176.4129563591. The cubic root of 851263073 is about 947.7372084740.

The spelling of 851263073 in words is "eight hundred fifty-one million, two hundred sixty-three thousand, seventy-three".