451043316310640 has 80 divisors (see below), whose sum is σ = 1049619920025600. Its totient is φ = 180254943165696.

The previous prime is 451043316310637. The next prime is 451043316310649. The reversal of 451043316310640 is 46013613340154.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451043316310649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473030681 + ... + 473983239.

It is an arithmetic number, because the mean of its divisors is an integer number (13120249000320).

Almost surely, 2^{451043316310640} is an apocalyptic number.

451043316310640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451043316310640 is an abundant number, since it is smaller than the sum of its proper divisors (598576603714960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451043316310640 is a wasteful number, since it uses less digits than its factorization.

451043316310640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957894 (or 957888 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 451043316310640 its reverse (46013613340154), we get a palindrome (497056929650794).

The spelling of 451043316310640 in words is "four hundred fifty-one trillion, forty-three billion, three hundred sixteen million, three hundred ten thousand, six hundred forty".