1641245463 has 32 divisors (see below), whose sum is σ = 2856564480. Its totient is φ = 918177120.

The previous prime is 1641245453. The next prime is 1641245471. The reversal of 1641245463 is 3645421461.

1641245463 is a `hidden beast` number, since 1 + 641 + 2 + 4 + 5 + 4 + 6 + 3 = 666.

It is not a de Polignac number, because 1641245463 - 2⁴ = 1641245447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641245413) 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 31 ways as a sum of consecutive naturals, for example, 208681 + ... + 216402.

It is an arithmetic number, because the mean of its divisors is an integer number (89267640).

Almost surely, 2^1641245463 is an apocalyptic number.

1641245463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1641245463 is a deficient number, since it is larger than the sum of its proper divisors (1215319017).

1641245463 is a wasteful number, since it uses less digits than its factorization.

1641245463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425116 (or 425110 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1641245463 is about 40512.2878025915. The cubic root of 1641245463 is about 1179.5721572066.

The spelling of 1641245463 in words is "one billion, six hundred forty-one million, two hundred forty-five thousand, four hundred sixty-three".