98558951481 has 27 divisors (see below), whose sum is σ = 143303694703. Its totient is φ = 65274612720.

The previous prime is 98558951473. The next prime is 98558951483. The reversal of 98558951481 is 18415985589.

The square root of 98558951481 is 313941.

It is a perfect power (a square), and thus also a powerful number.

98558951481 is a `hidden beast` number, since 9 + 8 + 5 + 589 + 5 + 1 + 48 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31591863081 + 66967088400 = 177741^2 + 258780^2 .

It is not a de Polignac number, because 98558951481 - 2³ = 98558951473 is a prime.

It is a super-2 number, since 2×98558951481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98558951483) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 213793591 + ... + 213794051.

Almost surely, 2^98558951481 is an apocalyptic number.

98558951481 is the 313941-st square number.

98558951481 is the 156971-st centered octagonal number.

It is an amenable number.

98558951481 is a deficient number, since it is larger than the sum of its proper divisors (44744743222).

98558951481 is an frugal number, since it uses more digits than its factorization.

98558951481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 691 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 63.

The spelling of 98558951481 in words is "ninety-eight billion, five hundred fifty-eight million, nine hundred fifty-one thousand, four hundred eighty-one".