212513195349 has 64 divisors (see below), whose sum is σ = 410281966080. Its totient is φ = 105501035520.

The previous prime is 212513195291. The next prime is 212513195357. The reversal of 212513195349 is 943591315212.

212513195349 is a `hidden beast` number, since 2 + 1 + 2 + 513 + 1 + 95 + 3 + 49 = 666.

It is not a de Polignac number, because 212513195349 - 2⁷ = 212513195221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212513195149) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2502142 + ... + 2585679.

It is an arithmetic number, because the mean of its divisors is an integer number (6410655720).

Almost surely, 2^212513195349 is an apocalyptic number.

It is an amenable number.

212513195349 is a deficient number, since it is larger than the sum of its proper divisors (197768770731).

212513195349 is a wasteful number, since it uses less digits than its factorization.

212513195349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087867 (or 5087861 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The spelling of 212513195349 in words is "two hundred twelve billion, five hundred thirteen million, one hundred ninety-five thousand, three hundred forty-nine".