451045401350881 has 2 divisors, whose sum is σ = 451045401350882. Its totient is φ = 451045401350880.

The previous prime is 451045401350809. The next prime is 451045401350897. The reversal of 451045401350881 is 188053104540154.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404677595560000 + 46367805790881 = 20116600^2 + 6809391^2 .

It is a cyclic number.

It is not a de Polignac number, because 451045401350881 - 2¹³ = 451045401342689 is a prime.

It is a super-2 number, since 2×451045401350881² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (451045401350281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225522700675440 + 225522700675441.

It is an arithmetic number, because the mean of its divisors is an integer number (225522700675441).

Almost surely, 2^{451045401350881} is an apocalyptic number.

It is an amenable number.

451045401350881 is a deficient number, since it is larger than the sum of its proper divisors (1).

451045401350881 is an equidigital number, since it uses as much as digits as its factorization.

451045401350881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536000, while the sum is 49.

The spelling of 451045401350881 in words is "four hundred fifty-one trillion, forty-five billion, four hundred one million, three hundred fifty thousand, eight hundred eighty-one".