6453063781 has 2 divisors, whose sum is σ = 6453063782. Its totient is φ = 6453063780.

The previous prime is 6453063761. The next prime is 6453063823. The reversal of 6453063781 is 1873603546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3293612100 + 3159451681 = 57390^2 + 56209^2 .

It is a cyclic number.

It is not a de Polignac number, because 6453063781 - 2¹³ = 6453055589 is a prime.

It is a super-2 number, since 2×6453063781² = 83284064323308031922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6453063751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3226531890 + 3226531891.

It is an arithmetic number, because the mean of its divisors is an integer number (3226531891).

Almost surely, 2^6453063781 is an apocalyptic number.

It is an amenable number.

6453063781 is a deficient number, since it is larger than the sum of its proper divisors (1).

6453063781 is an equidigital number, since it uses as much as digits as its factorization.

6453063781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 6453063781 is about 80330.9640238433. The cubic root of 6453063781 is about 1861.7526722393.

The spelling of 6453063781 in words is "six billion, four hundred fifty-three million, sixty-three thousand, seven hundred eighty-one".