451979898907 has 2 divisors, whose sum is σ = 451979898908. Its totient is φ = 451979898906.

The previous prime is 451979898857. The next prime is 451979898961. The reversal of 451979898907 is 709898979154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451979898907 - 2¹¹ = 451979896859 is a prime.

It is not a weakly prime, because it can be changed into another prime (451979898967) 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, 225989949453 + 225989949454.

It is an arithmetic number, because the mean of its divisors is an integer number (225989949454).

Almost surely, 2^451979898907 is an apocalyptic number.

451979898907 is a deficient number, since it is larger than the sum of its proper divisors (1).

451979898907 is an equidigital number, since it uses as much as digits as its factorization.

451979898907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 411505920, while the sum is 76.

The spelling of 451979898907 in words is "four hundred fifty-one billion, nine hundred seventy-nine million, eight hundred ninety-eight thousand, nine hundred seven".