213368825557 has 8 divisors (see below), whose sum is σ = 223283692800. Its totient is φ = 203507121840.

The previous prime is 213368825543. The next prime is 213368825563. The reversal of 213368825557 is 755528863312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213368825557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213368825498 and 213368825507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213368825507) 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, 13282669 + ... + 13298722.

It is an arithmetic number, because the mean of its divisors is an integer number (27910461600).

Almost surely, 2^213368825557 is an apocalyptic number.

It is an amenable number.

213368825557 is a deficient number, since it is larger than the sum of its proper divisors (9914867243).

213368825557 is a wasteful number, since it uses less digits than its factorization.

213368825557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26581763.

The product of its digits is 12096000, while the sum is 55.

The spelling of 213368825557 in words is "two hundred thirteen billion, three hundred sixty-eight million, eight hundred twenty-five thousand, five hundred fifty-seven".