213412464305621 has 8 divisors (see below), whose sum is σ = 249572051281344. Its totient is φ = 178670900348640.

The previous prime is 213412464305611. The next prime is 213412464305687. The reversal of 213412464305621 is 126503464214312.

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

It is not a de Polignac number, because 213412464305621 - 2²² = 213412460111317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213412464305611) 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, 354505754360 + ... + 354505754961.

It is an arithmetic number, because the mean of its divisors is an integer number (31196506410168).

Almost surely, 2^{213412464305621} is an apocalyptic number.

It is an amenable number.

213412464305621 is a deficient number, since it is larger than the sum of its proper divisors (36159586975723).

213412464305621 is an equidigital number, since it uses as much as digits as its factorization.

213412464305621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709011509371.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 213412464305621 in words is "two hundred thirteen trillion, four hundred twelve billion, four hundred sixty-four million, three hundred five thousand, six hundred twenty-one".