451508555947 has 2 divisors, whose sum is σ = 451508555948. Its totient is φ = 451508555946.

The previous prime is 451508555867. The next prime is 451508556001. The reversal of 451508555947 is 749555805154.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451508555947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451508555891 and 451508555900.

It is not a weakly prime, because it can be changed into another prime (451508525947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225754277973 + 225754277974.

It is an arithmetic number, because the mean of its divisors is an integer number (225754277974).

Almost surely, 2^451508555947 is an apocalyptic number.

451508555947 is a deficient number, since it is larger than the sum of its proper divisors (1).

451508555947 is an equidigital number, since it uses as much as digits as its factorization.

451508555947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200000, while the sum is 58.

The spelling of 451508555947 in words is "four hundred fifty-one billion, five hundred eight million, five hundred fifty-five thousand, nine hundred forty-seven".