98745520644 has 81 divisors (see below), whose sum is σ = 253051306599. Its totient is φ = 32467070160.

The previous prime is 98745520633. The next prime is 98745520669. The reversal of 98745520644 is 44602554789.

The square root of 98745520644 is 314238.

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

98745520644 is a `hidden beast` number, since 9 + 8 + 74 + 5 + 520 + 6 + 44 = 666.

It is an unprimeable number.

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, 156490209 + ... + 156490839.

Almost surely, 2^98745520644 is an apocalyptic number.

98745520644 is the 314238-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98745520644

98745520644 is an abundant number, since it is smaller than the sum of its proper divisors (154305785955).

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

98745520644 is an equidigital number, since it uses as much as digits as its factorization.

98745520644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 98745520644 in words is "ninety-eight billion, seven hundred forty-five million, five hundred twenty thousand, six hundred forty-four".