212451453553 has 8 divisors (see below), whose sum is σ = 212931084800. Its totient is φ = 211971912768.

The previous prime is 212451453517. The next prime is 212451453563. The reversal of 212451453553 is 355354154212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212451453553 - 2⁹ = 212451453041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212451453563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7342168 + ... + 7371046.

It is an arithmetic number, because the mean of its divisors is an integer number (26616385600).

Almost surely, 2^212451453553 is an apocalyptic number.

It is an amenable number.

212451453553 is a deficient number, since it is larger than the sum of its proper divisors (479631247).

212451453553 is a wasteful number, since it uses less digits than its factorization.

212451453553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45231.

The product of its digits is 360000, while the sum is 40.

The spelling of 212451453553 in words is "two hundred twelve billion, four hundred fifty-one million, four hundred fifty-three thousand, five hundred fifty-three".