451648785 has 16 divisors (see below), whose sum is σ = 825872256. Its totient is φ = 206467968.

The previous prime is 451648783. The next prime is 451648787. The reversal of 451648785 is 587846154.

It is an interprime number because it is at equal distance from previous prime (451648783) and next prime (451648787).

It is not a de Polignac number, because 451648785 - 2¹ = 451648783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451648783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2150604 + ... + 2150813.

It is an arithmetic number, because the mean of its divisors is an integer number (51617016).

Almost surely, 2^451648785 is an apocalyptic number.

It is an amenable number.

451648785 is a deficient number, since it is larger than the sum of its proper divisors (374223471).

451648785 is a wasteful number, since it uses less digits than its factorization.

451648785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301432.

The product of its digits is 1075200, while the sum is 48.

The square root of 451648785 is about 21252.0301383186. The cubic root of 451648785 is about 767.2442024049.

It can be divided in two parts, 4516 and 48785, that added together give a triangular number (53301 = T₃₂₆).

The spelling of 451648785 in words is "four hundred fifty-one million, six hundred forty-eight thousand, seven hundred eighty-five".