98764581636 has 96 divisors (see below), whose sum is σ = 292838031360. Its totient is φ = 28198951200.

The previous prime is 98764581623. The next prime is 98764581649. The reversal of 98764581636 is 63618546789.

It is an interprime number because it is at equal distance from previous prime (98764581623) and next prime (98764581649).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067671 + ... + 1156481.

It is an arithmetic number, because the mean of its divisors is an integer number (3050396160).

Almost surely, 2^98764581636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98764581636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146419015680).

98764581636 is an abundant number, since it is smaller than the sum of its proper divisors (194073449724).

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

98764581636 is a wasteful number, since it uses less digits than its factorization.

98764581636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90302 (or 90294 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 98764581636 in words is "ninety-eight billion, seven hundred sixty-four million, five hundred eighty-one thousand, six hundred thirty-six".