851663463 has 24 divisors (see below), whose sum is σ = 1328286960. Its totient is φ = 483960960.

The previous prime is 851663441. The next prime is 851663471. The reversal of 851663463 is 364366158.

It is not a de Polignac number, because 851663463 - 2¹³ = 851655271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851663363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10603 + ... + 42611.

It is an arithmetic number, because the mean of its divisors is an integer number (55345290).

Almost surely, 2^851663463 is an apocalyptic number.

851663463 is a deficient number, since it is larger than the sum of its proper divisors (476623497).

851663463 is a wasteful number, since it uses less digits than its factorization.

851663463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32207 (or 32200 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 851663463 is about 29183.2736854521. The cubic root of 851663463 is about 947.8857739939.

The spelling of 851663463 in words is "eight hundred fifty-one million, six hundred sixty-three thousand, four hundred sixty-three".