451253441540 has 24 divisors (see below), whose sum is σ = 1033780612032. Its totient is φ = 164092160480.

The previous prime is 451253441501. The next prime is 451253441549. The reversal of 451253441540 is 45144352154.

It is a junction number, because it is equal to n+sod(n) for n = 451253441494 and 451253441503.

It is not an unprimeable number, because it can be changed into a prime (451253441549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025575784 + ... + 1025576223.

It is an arithmetic number, because the mean of its divisors is an integer number (43074192168).

Almost surely, 2^451253441540 is an apocalyptic number.

It is an amenable number.

451253441540 is an abundant number, since it is smaller than the sum of its proper divisors (582527170492).

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

451253441540 is a wasteful number, since it uses less digits than its factorization.

451253441540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051152027 (or 2051152025 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 451253441540 its reverse (45144352154), we get a palindrome (496397793694).

The spelling of 451253441540 in words is "four hundred fifty-one billion, two hundred fifty-three million, four hundred forty-one thousand, five hundred forty".