451228252272 has 80 divisors (see below), whose sum is σ = 1390119360000. Its totient is φ = 123317035776.

The previous prime is 451228252271. The next prime is 451228252301. The reversal of 451228252272 is 272252822154.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451228252271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29186647 + ... + 29202102.

It is an arithmetic number, because the mean of its divisors is an integer number (17376492000).

Almost surely, 2^451228252272 is an apocalyptic number.

451228252272 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

451228252272 is an abundant number, since it is smaller than the sum of its proper divisors (938891107728).

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

451228252272 is a wasteful number, since it uses less digits than its factorization.

451228252272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58388790 (or 58388784 counting only the distinct ones).

The product of its digits is 358400, while the sum is 42.

The spelling of 451228252272 in words is "four hundred fifty-one billion, two hundred twenty-eight million, two hundred fifty-two thousand, two hundred seventy-two".