898987654321213 has 4 divisors (see below), whose sum is σ = 903248259318208. Its totient is φ = 894727049324220.

The previous prime is 898987654321201. The next prime is 898987654321279. The reversal of 898987654321213 is 312123456789898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-898987654321213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 898987654321213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898987654321283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130302498181 + ... + 2130302498602.

It is an arithmetic number, because the mean of its divisors is an integer number (225812064829552).

Almost surely, 2^{898987654321213} is an apocalyptic number.

It is an amenable number.

898987654321213 is a deficient number, since it is larger than the sum of its proper divisors (4260604996995).

898987654321213 is a wasteful number, since it uses less digits than its factorization.

898987654321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260604996994.

The product of its digits is 1254113280, while the sum is 76.

The spelling of 898987654321213 in words is "eight hundred ninety-eight trillion, nine hundred eighty-seven billion, six hundred fifty-four million, three hundred twenty-one thousand, two hundred thirteen".