98917039620 has 720 divisors, whose sum is σ = 380556747648. Its totient is φ = 21062384640.

The previous prime is 98917039609. The next prime is 98917039633. The reversal of 98917039620 is 2693071989.

98917039620 is a `hidden beast` number, since 9 + 8 + 9 + 1 + 7 + 0 + 3 + 9 + 620 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 298842855 + ... + 298843185.

Almost surely, 2^98917039620 is an apocalyptic number.

98917039620 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 98917039620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190278373824).

98917039620 is an abundant number, since it is smaller than the sum of its proper divisors (281639708028).

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

98917039620 is a wasteful number, since it uses less digits than its factorization.

98917039620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 98917039620 in words is "ninety-eight billion, nine hundred seventeen million, thirty-nine thousand, six hundred twenty".