451620315645144 has 16 divisors (see below), whose sum is σ = 1129050789112920. Its totient is φ = 150540105215040.

The previous prime is 451620315645127. The next prime is 451620315645157. The reversal of 451620315645144 is 441546513026154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9408756575917 + ... + 9408756575964.

Almost surely, 2^{451620315645144} is an apocalyptic number.

It is an amenable number.

451620315645144 is an abundant number, since it is smaller than the sum of its proper divisors (677430473467776).

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

451620315645144 is a wasteful number, since it uses less digits than its factorization.

451620315645144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18817513151890 (or 18817513151886 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 51.

The spelling of 451620315645144 in words is "four hundred fifty-one trillion, six hundred twenty billion, three hundred fifteen million, six hundred forty-five thousand, one hundred forty-four".