451343311540 has 24 divisors (see below), whose sum is σ = 1033986496032. Its totient is φ = 164124840480.

The previous prime is 451343311519. The next prime is 451343311609. The reversal of 451343311540 is 45113343154.

It is a junction number, because it is equal to n+sod(n) for n = 451343311496 and 451343311505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025780034 + ... + 1025780473.

It is an arithmetic number, because the mean of its divisors is an integer number (43082770668).

Almost surely, 2^451343311540 is an apocalyptic number.

It is an amenable number.

451343311540 is an abundant number, since it is smaller than the sum of its proper divisors (582643184492).

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

451343311540 is a wasteful number, since it uses less digits than its factorization.

451343311540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051560527 (or 2051560525 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 451343311540 its reverse (45113343154), we get a palindrome (496456654694).

The spelling of 451343311540 in words is "four hundred fifty-one billion, three hundred forty-three million, three hundred eleven thousand, five hundred forty".