213797646252 has 72 divisors (see below), whose sum is σ = 544428847872. Its totient is φ = 70739676000.

The previous prime is 213797646247. The next prime is 213797646253. The reversal of 213797646252 is 252646797312.

213797646252 is a `hidden beast` number, since 2 + 1 + 3 + 7 + 9 + 7 + 6 + 4 + 625 + 2 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (213797646253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7416627 + ... + 7445397.

It is an arithmetic number, because the mean of its divisors is an integer number (7561511776).

Almost surely, 2^213797646252 is an apocalyptic number.

It is an amenable number.

213797646252 is an abundant number, since it is smaller than the sum of its proper divisors (330631201620).

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

213797646252 is a wasteful number, since it uses less digits than its factorization.

213797646252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30299 (or 30294 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 213797646252 in words is "two hundred thirteen billion, seven hundred ninety-seven million, six hundred forty-six thousand, two hundred fifty-two".