213073212408 has 64 divisors (see below), whose sum is σ = 629773056000. Its totient is φ = 58778815872.

The previous prime is 213073212403. The next prime is 213073212421. The reversal of 213073212408 is 804212370312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213073212403) 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, 21862248 + ... + 21871991.

It is an arithmetic number, because the mean of its divisors is an integer number (9840204000).

Almost surely, 2^213073212408 is an apocalyptic number.

213073212408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213073212408 is an abundant number, since it is smaller than the sum of its proper divisors (416699843592).

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

213073212408 is a wasteful number, since it uses less digits than its factorization.

213073212408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43734284 (or 43734280 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 213073212408 in words is "two hundred thirteen billion, seventy-three million, two hundred twelve thousand, four hundred eight".