1451640621163 has 2 divisors, whose sum is σ = 1451640621164. Its totient is φ = 1451640621162.

The previous prime is 1451640621131. The next prime is 1451640621217. The reversal of 1451640621163 is 3611260461541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1451640621163 - 2⁵ = 1451640621131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1451640621763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725820310581 + 725820310582.

It is an arithmetic number, because the mean of its divisors is an integer number (725820310582).

Almost surely, 2^{1451640621163} is an apocalyptic number.

1451640621163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451640621163 is an equidigital number, since it uses as much as digits as its factorization.

1451640621163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 1451640621163 in words is "one trillion, four hundred fifty-one billion, six hundred forty million, six hundred twenty-one thousand, one hundred sixty-three".