9998457480 has 192 divisors, whose sum is σ = 36633945600. Its totient is φ = 2423836800.

The previous prime is 9998457463. The next prime is 9998457517. The reversal of 9998457480 is 847548999.

9998457480 is a `hidden beast` number, since 99 + 98 + 457 + 4 + 8 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92425 + ... + 168935.

It is an arithmetic number, because the mean of its divisors is an integer number (190801800).

Almost surely, 2^9998457480 is an apocalyptic number.

9998457480 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9998457480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18316972800).

9998457480 is an abundant number, since it is smaller than the sum of its proper divisors (26635488120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9998457480 is a wasteful number, since it uses less digits than its factorization.

9998457480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76553 (or 76532 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The square root of 9998457480 is about 99992.2871025561. The cubic root of 9998457480 is about 2154.3239090490.

It can be divided in two parts, 99984 and 57480, that added together give a cube (157464 = 54³).

The spelling of 9998457480 in words is "nine billion, nine hundred ninety-eight million, four hundred fifty-seven thousand, four hundred eighty".