98420387697025 has 81 divisors (see below), whose sum is σ = 128452162157193. Its totient is φ = 74800528387200.

The previous prime is 98420387696999. The next prime is 98420387697119. The reversal of 98420387697025 is 52079678302489.

The square root of 98420387697025 is 9920705.

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

It can be written as a sum of positive squares in 4 ways, for example, as 140050338289 + 98280337358736 = 374233^2 + 9913644^2 .

It is a de Polignac number, because none of the positive numbers 2^k-98420387697025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 320587581922 + ... + 320587582228.

Almost surely, 2^{98420387697025} is an apocalyptic number.

98420387697025 is the 9920705-th square number.

98420387697025 is the 4960353-rd centered octagonal number.

It is an amenable number.

98420387697025 is a deficient number, since it is larger than the sum of its proper divisors (30031774460168).

98420387697025 is an frugal number, since it uses more digits than its factorization.

98420387697025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 70.

The spelling of 98420387697025 in words is "ninety-eight trillion, four hundred twenty billion, three hundred eighty-seven million, six hundred ninety-seven thousand, twenty-five".