213346525005251 has 72 divisors (see below), whose sum is σ = 245680221778992. Its totient is φ = 185107854131200.

The previous prime is 213346525005217. The next prime is 213346525005269. The reversal of 213346525005251 is 152500525643312.

It is a de Polignac number, because none of the positive numbers 2^k-213346525005251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213346525005281) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3425956451 + ... + 3426018723.

It is an arithmetic number, because the mean of its divisors is an integer number (3412225302486).

Almost surely, 2^{213346525005251} is an apocalyptic number.

213346525005251 is a deficient number, since it is larger than the sum of its proper divisors (32333696773741).

213346525005251 is a wasteful number, since it uses less digits than its factorization.

213346525005251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62741 (or 62701 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 213346525005251 in words is "two hundred thirteen trillion, three hundred forty-six billion, five hundred twenty-five million, five thousand, two hundred fifty-one".