212451453552 has 80 divisors (see below), whose sum is σ = 591130915200. Its totient is φ = 65360822016.

The previous prime is 212451453517. The next prime is 212451453563. The reversal of 212451453552 is 255354154212.

It is a super-2 number, since 2×212451453552² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 212451453552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5739199 + ... + 5776097.

It is an arithmetic number, because the mean of its divisors is an integer number (7389136440).

Almost surely, 2^212451453552 is an apocalyptic number.

It is an amenable number.

212451453552 is an abundant number, since it is smaller than the sum of its proper divisors (378679461648).

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

212451453552 is a wasteful number, since it uses less digits than its factorization.

212451453552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46150 (or 46144 counting only the distinct ones).

The product of its digits is 240000, while the sum is 39.

The spelling of 212451453552 in words is "two hundred twelve billion, four hundred fifty-one million, four hundred fifty-three thousand, five hundred fifty-two".