898211198457 has 12 divisors (see below), whose sum is σ = 1365701237680. Its totient is φ = 567291283128.

The previous prime is 898211198449. The next prime is 898211198471. The reversal of 898211198457 is 754891112898.

898211198457 is a `hidden beast` number, since 8 + 9 + 82 + 1 + 11 + 98 + 457 = 666.

It is not a de Polignac number, because 898211198457 - 2³ = 898211198449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 898211198394 and 898211198403.

It is not an unprimeable number, because it can be changed into a prime (898211198447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2626348363 + ... + 2626348704.

Almost surely, 2^898211198457 is an apocalyptic number.

It is an amenable number.

898211198457 is a deficient number, since it is larger than the sum of its proper divisors (467490039223).

898211198457 is a wasteful number, since it uses less digits than its factorization.

898211198457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252697092 (or 5252697089 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 63.

The spelling of 898211198457 in words is "eight hundred ninety-eight billion, two hundred eleven million, one hundred ninety-eight thousand, four hundred fifty-seven".