98104901781 has 16 divisors (see below), whose sum is σ = 135047295488. Its totient is φ = 63283550400.

The previous prime is 98104901717. The next prime is 98104901789. The reversal of 98104901781 is 18710940189.

It is not a de Polignac number, because 98104901781 - 2⁶ = 98104901717 is a prime.

It is a super-2 number, since 2×98104901781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98104901781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98104901789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537771 + ... + 696711.

It is an arithmetic number, because the mean of its divisors is an integer number (8440455968).

Almost surely, 2^98104901781 is an apocalyptic number.

It is an amenable number.

98104901781 is a deficient number, since it is larger than the sum of its proper divisors (36942393707).

98104901781 is a wasteful number, since it uses less digits than its factorization.

98104901781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165612.

The product of its (nonzero) digits is 145152, while the sum is 48.

The spelling of 98104901781 in words is "ninety-eight billion, one hundred four million, nine hundred one thousand, seven hundred eighty-one".