451533045542 has 4 divisors (see below), whose sum is σ = 677299568316. Its totient is φ = 225766522770.

The previous prime is 451533045539. The next prime is 451533045563. The reversal of 451533045542 is 245540335154.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 451533045542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112883261384 + ... + 112883261387.

It is an arithmetic number, because the mean of its divisors is an integer number (169324892079).

Almost surely, 2^451533045542 is an apocalyptic number.

451533045542 is a deficient number, since it is larger than the sum of its proper divisors (225766522774).

451533045542 is a wasteful number, since it uses less digits than its factorization.

451533045542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225766522773.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 451533045542 in words is "four hundred fifty-one billion, five hundred thirty-three million, forty-five thousand, five hundred forty-two".