451620315645145 has 32 divisors (see below), whose sum is σ = 565892565242112. Its totient is φ = 345352267932672.

The previous prime is 451620315645127. The next prime is 451620315645157. The reversal of 451620315645145 is 541546513026154.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 451620315645145 - 2⁹ = 451620315644633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 451620315645092 and 451620315645101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1296381954 + ... + 1296730276.

It is an arithmetic number, because the mean of its divisors is an integer number (17684142663816).

Almost surely, 2^{451620315645145} is an apocalyptic number.

It is an amenable number.

451620315645145 is a deficient number, since it is larger than the sum of its proper divisors (114272249596967).

451620315645145 is a wasteful number, since it uses less digits than its factorization.

451620315645145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356001.

The product of its (nonzero) digits is 8640000, while the sum is 52.

The spelling of 451620315645145 in words is "four hundred fifty-one trillion, six hundred twenty billion, three hundred fifteen million, six hundred forty-five thousand, one hundred forty-five".