98657447040 has 256 divisors, whose sum is σ = 349704633600. Its totient is φ = 26286612480.

The previous prime is 98657447039. The next prime is 98657447041. The reversal of 98657447040 is 4074475689.

98657447040 is a `hidden beast` number, since 9 + 8 + 65 + 74 + 470 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (98657447039) and next prime (98657447041).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (98657447041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39414429 + ... + 39416931.

It is an arithmetic number, because the mean of its divisors is an integer number (1366033725).

Almost surely, 2^98657447040 is an apocalyptic number.

98657447040 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 98657447040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174852316800).

98657447040 is an abundant number, since it is smaller than the sum of its proper divisors (251047186560).

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

98657447040 is a wasteful number, since it uses less digits than its factorization.

98657447040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812 (or 4794 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 98657447040 in words is "ninety-eight billion, six hundred fifty-seven million, four hundred forty-seven thousand, forty".