98402043481 has 27 divisors (see below), whose sum is σ = 117435115773. Its totient is φ = 82212137280.

The previous prime is 98402043479. The next prime is 98402043581. The reversal of 98402043481 is 18434020489.

The square root of 98402043481 is 313691.

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

It can be written as a sum of positive squares in 4 ways, for example, as 985646025 + 97416397456 = 31395^2 + 312116^2 .

It is not a de Polignac number, because 98402043481 - 2¹ = 98402043479 is a prime.

It is a super-2 number, since 2×98402043481² (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 (98402043401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 90028771 + ... + 90029863.

Almost surely, 2^98402043481 is an apocalyptic number.

98402043481 is the 313691-st square number.

98402043481 is the 156846-th centered octagonal number.

It is an amenable number.

98402043481 is a deficient number, since it is larger than the sum of its proper divisors (19033072292).

98402043481 is an frugal number, since it uses more digits than its factorization.

98402043481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 98402043481 in words is "ninety-eight billion, four hundred two million, forty-three thousand, four hundred eighty-one".