451500240213 has 32 divisors (see below), whose sum is σ = 734947046400. Its totient is φ = 271667876400.

The previous prime is 451500240209. The next prime is 451500240227. The reversal of 451500240213 is 312042005154.

It is not a de Polignac number, because 451500240213 - 2² = 451500240209 is a prime.

It is a super-3 number, since 3×451500240213³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451500240253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5427073 + ... + 5509638.

It is an arithmetic number, because the mean of its divisors is an integer number (22967095200).

Almost surely, 2^451500240213 is an apocalyptic number.

It is an amenable number.

451500240213 is a deficient number, since it is larger than the sum of its proper divisors (283446806187).

451500240213 is a wasteful number, since it uses less digits than its factorization.

451500240213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10936870 (or 10936864 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 451500240213 its reverse (312042005154), we get a palindrome (763542245367).

The spelling of 451500240213 in words is "four hundred fifty-one billion, five hundred million, two hundred forty thousand, two hundred thirteen".